├── frameworks ├── __init__.py ├── pytest_sp │ ├── __init__.py │ ├── samples │ │ ├── __init__.py │ │ ├── sample_test.py │ │ ├── test_sample.py │ │ ├── test_exception.py │ │ ├── test_tmpdir.py │ │ ├── test_class.py │ │ └── test_fixtures.py │ └── readme.md └── flask_snippets │ ├── __init__.py │ ├── blueprint_app │ ├── __init__.py │ ├── readme.md │ ├── app.py │ └── bp.py │ ├── sample_app │ ├── my_app │ │ ├── __init__.py │ │ ├── views │ │ │ ├── __init__.py │ │ │ └── hello.py │ │ ├── app.py │ │ └── templates │ │ │ └── index.html │ ├── run_app.py │ └── readme.md │ ├── before_after_request_sp │ ├── __init__.py │ ├── bp.py │ └── app.py │ ├── flask_bin │ ├── readme.md │ └── run_app.py │ ├── hello_flask │ └── app.py │ ├── route_sp │ └── catch_all_url.py │ ├── errorhandler_app │ ├── readme.md │ └── app2.py │ ├── flask_request │ └── app.py │ └── flask_json_encoder │ └── app.py ├── sdks └── qiniu │ ├── __init__.py │ ├── config │ ├── sample_config.py │ └── __init__.py │ └── app.py ├── packages ├── _common_text │ └── foo.txt ├── peewee_sp │ ├── __init__.py │ ├── transcation │ │ ├── __init__.py │ │ └── deco.py │ ├── sqlite_db.py │ ├── readme.md │ ├── mysql_conn.py │ ├── models.py │ ├── mysql_db.py │ ├── index_sp.py │ ├── databases.py │ ├── model_and_dict.py │ ├── exceptions_sp.py │ └── group_by_and_count.py ├── config_snippets │ ├── __init__.py │ ├── config │ │ ├── online_config.py │ │ ├── sample_config.py │ │ └── __init__.py │ └── read_config.py ├── jieba_sp │ ├── recipe.txt │ ├── recipe.py │ └── jieba_sp.py ├── json_sp │ ├── hello.json │ ├── hello_u.json │ └── json_encoder_sp.py ├── mako_sp │ ├── mytmpl.txt │ ├── readme.md │ ├── render_file.py │ ├── hello_mako.py │ └── python_block.py ├── package_snippets │ ├── test_all │ │ ├── all_a │ │ │ └── __init__.py │ │ └── __init__.py │ ├── foo │ │ ├── foo_a.py │ │ ├── bar │ │ │ └── __init__.py │ │ └── __init__.py │ ├── __init__.py │ ├── print_all.py │ ├── print_all_2.py │ └── print_package.py ├── _common_img │ ├── in.jpg │ ├── xxx.png │ ├── google.jpg │ ├── google.jpg.png │ └── jump_jump.jpg ├── pendulum_sp │ ├── readme.md │ ├── now.py │ ├── timezone.py │ ├── with_datetime.py │ └── parse_sp.py ├── heapq_sp │ ├── readme.md │ └── heapq_sp.py ├── pypinyin_sp │ ├── readme.md │ └── pypinyin_sp.py ├── tqdm_sp │ ├── readmd.md │ ├── tqdm_sp.py │ ├── manual.py │ └── description.py ├── pil_sp │ ├── readme.md │ ├── create_image.py │ ├── hello_pil.py │ ├── write_text.py │ └── read_write_color.py ├── typing_snippets │ ├── readme.md │ ├── any_sp.py │ ├── self_sp.py │ ├── callable_sp.py │ ├── int_it.py │ ├── new_type_sp.py │ ├── union_sp.py │ ├── type_hint_sp.py │ └── type_var_sp.py ├── cursor_size_snippets │ └── hello_cursor.py ├── fire_sp │ ├── hello_fire.py │ ├── fire_multi_func.py │ └── readme.md ├── input │ └── hello_input.py ├── string_io_snippets │ ├── readme.md │ ├── with_string_io_as_f.py │ └── hello_string_io.py ├── xml_parse_sp │ ├── demo.xml │ └── readme.md ├── requests_sp │ ├── get.py │ ├── hello_requests.py │ ├── request_cookies.py │ ├── post_json.py │ ├── post_file.py │ ├── request_header.py │ ├── sessions.py │ ├── request_through_proxy.py │ ├── resp.py │ ├── download_and_upload_img.py │ ├── timeout_demo.py │ └── save_img.py ├── bytes_io_sp │ └── hello_bytes_io.py ├── coroutine_sp │ ├── readme.md │ ├── yield_sample.py │ └── yield_task_scheduler.py ├── tempfile_sp │ └── hello_tempfile.py ├── fake_snippets │ ├── hello_fake.py │ └── fake_demo.py ├── retrying_sp │ └── readme.md ├── filter_snippets │ ├── hello_filter.py │ └── filter_performance.py ├── xerox_sp │ └── xerox_sp.py ├── aiohttp │ ├── readme.md │ ├── aiohttp_client.py │ └── simple_aiohttp_server.py ├── tuple_snippets │ └── hello_tuple.py ├── pydantic_sp │ ├── default_value.py │ ├── inherit.py │ ├── default_multable_value_pitfall.py │ ├── fields.py │ ├── field_alias_config.py │ ├── model_init.py │ ├── hello_pydantic.py │ ├── readme.md │ ├── custom_data_type.py │ ├── setting_sp.py │ ├── recursive_models.py │ ├── demo_subclass_and_load_data.py │ └── pep_484_types.py ├── dict_snippets │ ├── dict_exception.py │ ├── iter_dict.py │ ├── dict_update.py │ └── dict_compare.py ├── fileinput_sp │ └── hello_fileinput.py ├── dataclasses_sp │ ├── readme.md │ ├── default_sp.py │ ├── field_sp.py │ ├── poly_field_sp.py │ ├── load_sp.py │ └── hello_dataclasses.py ├── base64_snippets │ └── hello_base64.py ├── function_snippets │ └── func_args.py ├── redis_sp │ ├── hello_redis.py │ ├── play_with_key.py │ ├── redis_set.py │ ├── batch_read_performance.py │ ├── batch_insert_performance.py │ └── redis_list.py ├── marshmallow_sp │ ├── readme.md │ ├── fields_sp.py │ ├── nest_field.py │ └── marshmallow_demo.py ├── mimetypes_sp │ └── hello_mimetypes.py ├── misaka_snippets │ └── misaka_demo.py ├── filesystem │ ├── mk_dir.py │ ├── files_in_path.py │ ├── rm_dir.py │ ├── join_path.py │ ├── rm_file.py │ ├── get_path.py │ └── read_write_file.py ├── packaging_sp │ └── packaging_sp.py ├── threading_snippets │ ├── var_in_thread.py │ ├── thread_and_queue.py │ └── thread_and_log.py ├── statsd_snippets │ └── hello_statsd.py ├── socket_sp │ ├── socket_client_sp.py │ ├── readme.md │ └── socket_server_sp.py ├── gevent_snippets │ ├── hello_gevent.py │ └── patch_stdout.py ├── schematics_snippets │ ├── schematics_types.py │ ├── schematics_list_type.py │ ├── schematics_dict_type.py │ └── validation.py ├── log_snippets │ ├── logger_sp.py │ ├── readme.md │ ├── log_demo.py │ └── log_to_stdout.py ├── asyncio_sp │ ├── readme.md │ ├── hello_asyncio.py │ ├── async_wget.py │ └── asyncio_wget.py ├── mypy_sp │ └── typed_dict.py ├── stdout_snippets │ ├── print_to_stderr.py │ └── get_shell_width_height.py ├── pyjwt_sp │ ├── pyjwt_sp.py │ └── readme.md ├── geetest_sp │ ├── geetest_sp.py │ └── readme.md ├── struct_sp │ └── hello_struct.py └── wtforms_sp │ └── hello_wtforms.py ├── basic ├── context_manager_sp │ ├── test_file │ ├── readme.md │ ├── context_manager_generator_approach.py │ └── context_manager_class_approach.py ├── hello_world.py ├── int_sp │ ├── int_sp.py │ └── int_str.py ├── bytes_sp │ ├── bytes_sp.py │ ├── char_and_int.py │ └── bytes_int.py ├── zip_demo.py ├── str_sp │ ├── str_startswith_endswith.py │ ├── str_strip.py │ ├── upper_sp.py │ ├── str_num.py │ ├── str_unicode.py │ ├── str_escape.py │ └── str_demo.py ├── pass_sp │ └── pass_sp.py ├── print.py ├── python_version.py ├── dict_sp │ ├── traverse_dict.py │ ├── dict_data.py │ ├── filter_dict.py │ └── update_dict.py ├── max_sp │ └── max_sp.py ├── bool_sp.py ├── decorator_sp │ ├── hello_deco.py │ ├── register_deco.py │ └── retry_with_decorator.py ├── i__dict__.py ├── range_sp │ ├── datetime_range.py │ ├── range.py │ └── range_py2.py ├── exception_sp │ ├── catch_sp.py │ ├── exception_to_str.py │ └── hello_exception.py ├── run_file.py ├── return_demo.py ├── yield_sp │ ├── chunks_with_yield.py │ └── yield_.py ├── any_demo.py ├── type_sp │ └── type_sp.py ├── func_with_docstring.py ├── class_sp │ ├── class_demo.py │ ├── inner_meta_class.py │ └── enum_class_demo.py ├── i__str____repr__.py ├── i__slots__.py ├── attribute_demo.py ├── iter_sp │ └── iter_sp.py ├── doctest_sp │ └── doctest_sp.py ├── copy_sp │ └── copy_sp.py └── inhert_sp │ └── multi_inhert.py ├── utils ├── 001-read-ids-from-file │ ├── ids2.txt │ ├── ids.txt │ ├── write_ids_to_file.py │ └── app.py ├── 010-stack-overflow │ └── app.py ├── 005-string-generator │ └── app.py ├── 006-text-mosaic │ └── app.py ├── 014-mean │ └── app.py ├── 002-show-progress │ └── app.py ├── 013-this-week │ └── app.py ├── 003-upload-temp-file-with-string-io │ └── app.py ├── 012-yes-or-no │ └── app.py ├── 005-get-image-type │ └── app.py ├── 009-download-then-upload-image-file │ └── app.py ├── 015-base36 │ └── app.py ├── 004-get-title-from-url │ └── app.py └── 007-add-params-to-url │ └── app.py ├── prjs ├── 014-count-text │ ├── foo.txt │ └── app.py ├── 002-covert-mindmap-csv-to-dict │ └── test.csv ├── 008-marshmallow-schematics │ ├── daos.py │ └── app.py ├── 012-draw-text-on-img │ ├── bg.png │ └── app.py ├── 001-covert-img-to-rgb │ ├── img │ │ ├── in.jpg │ │ ├── out_a.jpg │ │ └── out_b.jpg │ ├── icc │ │ ├── JapanColor2001Coated.icc │ │ └── sRGB Color Space Profile.ICM │ ├── app.py │ └── notes.md ├── 013-download-ow365pages │ └── readme.md ├── 016-common-3500-hanzi-pinyin │ └── app.py ├── 022-http-chunked-exp-with-flask │ ├── readme.md │ └── app.py ├── 006-make-1-million-requests-with-python-aiohttp │ ├── s1_requests.py │ ├── s1_aiohttp.py │ ├── s2_requests.py │ ├── s3_requests.py │ └── s3_server.py ├── 024-how-long-the-course │ ├── readme.md │ └── app.py ├── 023-socket-http-client │ ├── readme.md │ ├── get.py │ └── post.py ├── 010-add-bom-to-file │ └── app.py ├── 017-url-encode │ └── app.py ├── 026-json2csv │ └── app.py ├── 019-read-video-duration │ └── app.py └── 020-random-yuque-page-id │ └── app.py ├── playground.py ├── builtin_packages ├── csv_sp │ ├── some.tsv │ ├── some.csv │ ├── writer_sp.py │ ├── reader_for_tsv_sp.py │ ├── reader_sp.py │ └── append_writer.py ├── os_sp │ ├── readme.md │ ├── hello_os.py │ ├── check_and_make_dir.py │ └── read_write_os_environment_variables.py ├── hashlib_sp │ └── readme.md ├── time_sp │ ├── timestamp.py │ └── execution_time_b.py ├── re_sp │ ├── readme.md │ ├── re_replace.py │ ├── re_find_all.py │ ├── hello_re.py │ ├── group_search.py │ ├── re_collect.py │ └── re_tokens.py ├── datetime_sp │ ├── isoformat_sp.py │ ├── strftime_sp.py │ ├── hello_datetime.py │ ├── timedelta_sp.py │ ├── datetime_operation.py │ ├── datetime_util.py │ ├── timezone_sp.py │ ├── datetime_and_timestamp.py │ └── week_day.py ├── urllib_parse_sp │ ├── parse_qsl_sp.py │ ├── parse_qs_sp.py │ ├── readme.md │ ├── urljoin_py2.py │ └── urlencode_sp.py ├── math_sp │ ├── ceil_and_floor.py │ └── math_log.py ├── statistics_sp │ └── mean_sp.py ├── argparse_sp │ ├── note.md │ └── argparse_demo.py ├── subprocess_sp │ ├── get_std_out.py │ ├── readme.md │ ├── error_code_of_call.py │ ├── hello_shell.py │ ├── hello_shell_old.py │ └── run_apple_script.py ├── inspect_sp │ ├── member.py │ ├── defines.py │ ├── inspect_sp.py │ ├── readme.md │ ├── signature.py │ └── source_code.py ├── enum_sp │ ├── readme.md │ ├── tuple_enum_sp.py │ ├── hello_enum.py │ └── enum_for_error_code.py ├── collections_snippets │ ├── hello_counter.py │ ├── hello_deque.py │ ├── use_ordered_dict_remove_duplicate.py │ ├── hello_namedtuple.py │ └── hello_defaultdict.py ├── uuid_sp │ ├── hello_uuid.py │ └── part_or_uuid.py ├── base64_sp │ ├── base64_decode.py │ ├── urlsafe_encode_decode.py │ └── base64_encode.py └── sys_sp │ └── sys_stdin.py ├── README.md └── Pipfile /frameworks/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /sdks/qiniu/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /frameworks/pytest_sp/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /packages/_common_text/foo.txt: -------------------------------------------------------------------------------- 1 | bar -------------------------------------------------------------------------------- /packages/peewee_sp/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /packages/config_snippets/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /frameworks/pytest_sp/samples/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /packages/jieba_sp/recipe.txt: -------------------------------------------------------------------------------- 1 | 老北京 2 | 烫饭 3 | -------------------------------------------------------------------------------- /packages/peewee_sp/transcation/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /packages/json_sp/hello.json: -------------------------------------------------------------------------------- 1 | {"hello": "world"} -------------------------------------------------------------------------------- /packages/json_sp/hello_u.json: -------------------------------------------------------------------------------- 1 | {"hello": "世界"} -------------------------------------------------------------------------------- /packages/mako_sp/mytmpl.txt: -------------------------------------------------------------------------------- 1 | hello, ${name}! 2 | -------------------------------------------------------------------------------- /basic/context_manager_sp/test_file: -------------------------------------------------------------------------------- 1 | hello world 2 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/blueprint_app/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /utils/001-read-ids-from-file/ids2.txt: -------------------------------------------------------------------------------- 1 | 3 2 | 5 3 | 7 -------------------------------------------------------------------------------- /frameworks/flask_snippets/sample_app/my_app/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/before_after_request_sp/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/sample_app/my_app/views/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /prjs/014-count-text/foo.txt: -------------------------------------------------------------------------------- 1 | foo 2 | bar 3 | foo 4 | 5 | baz 6 | baz 7 | baz 8 | -------------------------------------------------------------------------------- /packages/package_snippets/test_all/all_a/__init__.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | all_a_a = 'aaa' 4 | -------------------------------------------------------------------------------- /basic/hello_world.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | if __name__ == '__main__': 4 | print("Hello, World!") 5 | -------------------------------------------------------------------------------- /packages/mako_sp/readme.md: -------------------------------------------------------------------------------- 1 | [Mako 1.0.8 Documentation](http://docs.makotemplates.org/en/latest/index.html) -------------------------------------------------------------------------------- /playground.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | print('Hello') 3 | 4 | 5 | if __name__ == '__main__': 6 | main() 7 | -------------------------------------------------------------------------------- /packages/peewee_sp/sqlite_db.py: -------------------------------------------------------------------------------- 1 | from peewee import SqliteDatabase 2 | 3 | db = SqliteDatabase('data.db') 4 | -------------------------------------------------------------------------------- /packages/package_snippets/foo/foo_a.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def print_foo_a(): 5 | print('>>> foo_a') 6 | -------------------------------------------------------------------------------- /packages/_common_img/in.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/packages/_common_img/in.jpg -------------------------------------------------------------------------------- /packages/_common_img/xxx.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/packages/_common_img/xxx.png -------------------------------------------------------------------------------- /frameworks/pytest_sp/readme.md: -------------------------------------------------------------------------------- 1 | backref: [pytest usage](https://www.notion.so/pytest-usage-9d63001e07c941d699d2449724c77d9c) 2 | -------------------------------------------------------------------------------- /packages/peewee_sp/readme.md: -------------------------------------------------------------------------------- 1 | backref: [peewee usage](https://www.notion.so/peewee-usage-07d691919fd7494cbd578d59277b5a45) 2 | -------------------------------------------------------------------------------- /packages/pendulum_sp/readme.md: -------------------------------------------------------------------------------- 1 | [Documentation | Pendulum - Python datetimes made easy](https://pendulum.eustace.io/docs/) 2 | -------------------------------------------------------------------------------- /prjs/002-covert-mindmap-csv-to-dict/test.csv: -------------------------------------------------------------------------------- 1 | 如何种西瓜,, 2 | ,准备种植, 3 | ,,决定是播种还是移植 4 | ,种植西瓜, 5 | ,,制造土墩 6 | ,,播种种子 7 | ,收获西瓜, 8 | -------------------------------------------------------------------------------- /prjs/008-marshmallow-schematics/daos.py: -------------------------------------------------------------------------------- 1 | class FooDAO(object): 2 | def __init__(self, bar): 3 | self.bar = bar 4 | -------------------------------------------------------------------------------- /packages/_common_img/google.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/packages/_common_img/google.jpg -------------------------------------------------------------------------------- /packages/config_snippets/config/online_config.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | class Config(object): 5 | 6 | ENV = 'online' 7 | -------------------------------------------------------------------------------- /packages/config_snippets/config/sample_config.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | class Config(object): 5 | 6 | ENV = 'sample' 7 | -------------------------------------------------------------------------------- /packages/heapq_sp/readme.md: -------------------------------------------------------------------------------- 1 | # readme 2 | 3 | [heapq --- 堆队列算法 — Python 3.7.4 文档](https://docs.python.org/zh-cn/3/library/heapq.html) -------------------------------------------------------------------------------- /prjs/012-draw-text-on-img/bg.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/prjs/012-draw-text-on-img/bg.png -------------------------------------------------------------------------------- /builtin_packages/csv_sp/some.tsv: -------------------------------------------------------------------------------- 1 | n_followers to_id 2 | 2932945 111111111 3 | 691671 10008888 4 | 548603 10444444 5 | 369772 104388888 6 | -------------------------------------------------------------------------------- /packages/_common_img/google.jpg.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/packages/_common_img/google.jpg.png -------------------------------------------------------------------------------- /packages/_common_img/jump_jump.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/packages/_common_img/jump_jump.jpg -------------------------------------------------------------------------------- /frameworks/pytest_sp/samples/sample_test.py: -------------------------------------------------------------------------------- 1 | def inc(x): 2 | return x + 1 3 | 4 | 5 | def test_answer(): 6 | assert inc(4) == 5 7 | -------------------------------------------------------------------------------- /packages/pypinyin_sp/readme.md: -------------------------------------------------------------------------------- 1 | # pypinyin 2 | 3 | [mozillazg/python-pinyin: 汉字转拼音(pypinyin)](https://github.com/mozillazg/python-pinyin) 4 | -------------------------------------------------------------------------------- /packages/tqdm_sp/readmd.md: -------------------------------------------------------------------------------- 1 | # tqdm 2 | 3 | [tqdm/tqdm: A fast, extensible progress bar for Python and CLI](https://github.com/tqdm/tqdm) 4 | -------------------------------------------------------------------------------- /prjs/001-covert-img-to-rgb/img/in.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/prjs/001-covert-img-to-rgb/img/in.jpg -------------------------------------------------------------------------------- /basic/int_sp/int_sp.py: -------------------------------------------------------------------------------- 1 | 2 | def main(): 3 | print(11 // 10) 4 | print(11 / 10) 5 | 6 | 7 | if __name__ == '__main__': 8 | main() 9 | -------------------------------------------------------------------------------- /prjs/001-covert-img-to-rgb/img/out_a.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/prjs/001-covert-img-to-rgb/img/out_a.jpg -------------------------------------------------------------------------------- /prjs/001-covert-img-to-rgb/img/out_b.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/prjs/001-covert-img-to-rgb/img/out_b.jpg -------------------------------------------------------------------------------- /prjs/013-download-ow365pages/readme.md: -------------------------------------------------------------------------------- 1 | # 下载 ow365 页面中的图片 2 | 3 | 在最后才发现它的跳转过程中有一步是能得到源 pdf 文件的地址的，开始的时候被我忽略了，以为没有这一步的存在。 4 | 5 | 那么这个脚本也就不需要了。 6 | -------------------------------------------------------------------------------- /prjs/016-common-3500-hanzi-pinyin/app.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/prjs/016-common-3500-hanzi-pinyin/app.py -------------------------------------------------------------------------------- /packages/pil_sp/readme.md: -------------------------------------------------------------------------------- 1 | 2 | 3 | ref: 4 | 5 | - [Pillow — Pillow (PIL Fork) 4.4.0.dev0 documentation](http://pillow.readthedocs.io/en/latest/) 6 | -------------------------------------------------------------------------------- /basic/bytes_sp/bytes_sp.py: -------------------------------------------------------------------------------- 1 | 2 | def main(): 3 | print(b'Hello') 4 | print(type(b'Hello')) 5 | 6 | 7 | if __name__ == '__main__': 8 | main() 9 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/blueprint_app/readme.md: -------------------------------------------------------------------------------- 1 | [Modular Applications with Blueprints — Flask Documentation (0.12)](http://flask.pocoo.org/docs/0.12/blueprints/) -------------------------------------------------------------------------------- /basic/zip_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | if __name__ == '__main__': 4 | l1 = [1, 2, 3, 4] 5 | l2 = [11, 12, 13] 6 | l3 = zip(l1, l2) 7 | print(l3) 8 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/flask_bin/readme.md: -------------------------------------------------------------------------------- 1 | [httpbin/core.py at master · kennethreitz/httpbin](https://github.com/kennethreitz/httpbin/blob/master/httpbin/core.py) -------------------------------------------------------------------------------- /packages/package_snippets/foo/bar/__init__.py: -------------------------------------------------------------------------------- 1 | print('__name__ of foo/bar/__init__.py: {}'.format(__name__)) 2 | 3 | 4 | def print_bar(): 5 | print('>>> bar') 6 | -------------------------------------------------------------------------------- /packages/package_snippets/test_all/__init__.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from .all_a import all_a_a 3 | 4 | __all__ = ["a", "b"] 5 | 6 | a = 'aa' 7 | b = 'bb' 8 | c = 'cc' 9 | -------------------------------------------------------------------------------- /packages/typing_snippets/readme.md: -------------------------------------------------------------------------------- 1 | - [26.1. typing — Support for type hints — Python 3.6.4 documentation](https://docs.python.org/3/library/typing.html#module-typing) 2 | -------------------------------------------------------------------------------- /packages/package_snippets/foo/__init__.py: -------------------------------------------------------------------------------- 1 | import bar 2 | print('__name__ of foo/__init__.py: {}'.format(__name__)) 3 | 4 | 5 | def print_foo(): 6 | print('>>> foo') 7 | -------------------------------------------------------------------------------- /prjs/001-covert-img-to-rgb/icc/JapanColor2001Coated.icc: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/prjs/001-covert-img-to-rgb/icc/JapanColor2001Coated.icc -------------------------------------------------------------------------------- /packages/cursor_size_snippets/hello_cursor.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | print('Hello') 6 | 7 | 8 | if __name__ == '__main__': 9 | main() 10 | -------------------------------------------------------------------------------- /prjs/022-http-chunked-exp-with-flask/readme.md: -------------------------------------------------------------------------------- 1 | # http chuncked exp with flask 2 | 3 | [[doing]HTTP Content-Length、Range 以及 chunked 实验 · 语雀](https://www.yuque.com/clip/dev-wiki/inif76) -------------------------------------------------------------------------------- /basic/str_sp/str_startswith_endswith.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | print('Hello'.startswith('H')) 3 | print('Hello'.endswith('o')) 4 | 5 | 6 | if __name__ == '__main__': 7 | main() 8 | -------------------------------------------------------------------------------- /builtin_packages/os_sp/readme.md: -------------------------------------------------------------------------------- 1 | - [How to set environment variables in Python - Stack Overflow](https://stackoverflow.com/questions/5971312/how-to-set-environment-variables-in-python) 2 | -------------------------------------------------------------------------------- /packages/pendulum_sp/now.py: -------------------------------------------------------------------------------- 1 | import pendulum 2 | 3 | 4 | def main(): 5 | now = pendulum.now() 6 | print(now) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /prjs/001-covert-img-to-rgb/icc/sRGB Color Space Profile.ICM: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binderclip/code-snippets-python/HEAD/prjs/001-covert-img-to-rgb/icc/sRGB Color Space Profile.ICM -------------------------------------------------------------------------------- /packages/fire_sp/hello_fire.py: -------------------------------------------------------------------------------- 1 | import fire 2 | 3 | 4 | def say_hello(name): 5 | print(f'hello {name}') 6 | 7 | 8 | if __name__ == '__main__': 9 | fire.Fire(say_hello) 10 | -------------------------------------------------------------------------------- /basic/context_manager_sp/readme.md: -------------------------------------------------------------------------------- 1 | ## refs 2 | 3 | - [Structuring Your Project — The Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/writing/structure/#context-managers) 4 | -------------------------------------------------------------------------------- /basic/pass_sp/pass_sp.py: -------------------------------------------------------------------------------- 1 | def pass_test(): 2 | pass 3 | print('hello') 4 | 5 | 6 | def main(): 7 | pass_test() 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /builtin_packages/hashlib_sp/readme.md: -------------------------------------------------------------------------------- 1 | [arrays - Python: How to hash a string into 8 digits? - Stack Overflow](https://stackoverflow.com/questions/16008670/python-how-to-hash-a-string-into-8-digits) -------------------------------------------------------------------------------- /packages/input/hello_input.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | text = input('input your text: ') 3 | print('=== got it ===') 4 | print(text) 5 | 6 | 7 | if __name__ == '__main__': 8 | main() 9 | -------------------------------------------------------------------------------- /basic/print.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | print('Hello') 3 | print('a', end='') 4 | print('b', end='') 5 | print('c', end='') 6 | 7 | 8 | if __name__ == '__main__': 9 | main() 10 | -------------------------------------------------------------------------------- /prjs/006-make-1-million-requests-with-python-aiohttp/s1_requests.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def hello(): 5 | return requests.get("http://httpbin.org/get") 6 | 7 | 8 | print(hello().text) 9 | -------------------------------------------------------------------------------- /utils/001-read-ids-from-file/ids.txt: -------------------------------------------------------------------------------- 1 | 123 2 | 456 3 | 789 4 | 123 5 | 456 6 | 7 | 8 | 789 9 | 123 10 | 456 11 | 789 12 | 123 13 | 456 14 | 789 15 | 123 16 | 456 17 | 789 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /basic/python_version.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import sys 3 | 4 | 5 | def main(): 6 | print('Python Version: {}'.format(sys.version)) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /frameworks/pytest_sp/samples/test_sample.py: -------------------------------------------------------------------------------- 1 | import pytest 2 | 3 | 4 | def inc(x): 5 | return x + 1 6 | 7 | 8 | def test_answer(): 9 | assert inc(4) == 5 10 | # assert inc(3) == 5 11 | -------------------------------------------------------------------------------- /prjs/024-how-long-the-course/readme.md: -------------------------------------------------------------------------------- 1 | # readme 2 | 3 | 统计网易云客网一整节课的时间。 4 | 5 | 网页上每节课里面有 '12:34' 这样的时长，把这些识别出来，做个和就行。 6 | 7 | - [x] 从标准输入读取字符串 8 | - [x] 正则识别时间串 9 | - [x] 时间串转分钟 10 | - [x] 所有相加 -------------------------------------------------------------------------------- /basic/str_sp/str_strip.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | print(repr(' Hello\n\r')) 3 | print(repr(' Hello\n\r'.strip())) 4 | print('x大西瓜'.strip('大瓜西')) 5 | 6 | 7 | if __name__ == '__main__': 8 | main() 9 | -------------------------------------------------------------------------------- /builtin_packages/time_sp/timestamp.py: -------------------------------------------------------------------------------- 1 | import time 2 | 3 | 4 | def main(): 5 | print(time.time()) 6 | print(int(time.time() * 1000)) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /packages/pil_sp/create_image.py: -------------------------------------------------------------------------------- 1 | from PIL import Image 2 | 3 | 4 | def main(): 5 | im = Image.new("RGB", (200, 200), "#FFF") 6 | im.show() 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/flask_bin/run_app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from app import app 3 | 4 | 5 | def main(): 6 | app.run(port=8080, debug=True) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /packages/tqdm_sp/tqdm_sp.py: -------------------------------------------------------------------------------- 1 | import time 2 | from tqdm import tqdm 3 | 4 | 5 | def main(): 6 | for _ in tqdm(range(70)): 7 | time.sleep(0.05) 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /utils/010-stack-overflow/app.py: -------------------------------------------------------------------------------- 1 | def foo(): 2 | bar() 3 | 4 | def bar(): 5 | foo() 6 | 7 | def main(): 8 | print('foo...') 9 | foo() 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /builtin_packages/re_sp/readme.md: -------------------------------------------------------------------------------- 1 | ## refs 2 | 3 | - [6.2. re — Regular expression operations — Python 3.7.0 documentation](https://docs.python.org/3/library/re.html) 4 | - [Online regex tester and debugger](https://regex101.com/) 5 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/sample_app/my_app/app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from flask import Flask 3 | from flask_mako import MakoTemplates 4 | app = Flask(__name__) 5 | mako = MakoTemplates(app) 6 | 7 | import my_app.views.hello 8 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/sample_app/run_app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from my_app.app import app 3 | 4 | 5 | def main(): 6 | app.run(port=8080, debug=True) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /packages/config_snippets/read_config.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from config import CSConfig 3 | 4 | 5 | def main(): 6 | print("ENV is: {}".format(CSConfig.ENV)) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /packages/string_io_snippets/readme.md: -------------------------------------------------------------------------------- 1 | see also: 2 | 3 | - Binary I/O (BytesIO) 4 | 5 | ## refs 6 | 7 | - [16.2. io — Core tools for working with streams — Python 3.6.4 documentation](https://docs.python.org/3/library/io.html) 8 | -------------------------------------------------------------------------------- /packages/xml_parse_sp/demo.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | elements 4 | more elements 5 | 6 | 7 | element as well 8 | 9 | -------------------------------------------------------------------------------- /basic/bytes_sp/char_and_int.py: -------------------------------------------------------------------------------- 1 | 2 | def main(): 3 | print('\x41') 4 | print(chr(65)) 5 | print(hex(65)) 6 | print(ord('A')) 7 | print(ord('我')) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /basic/dict_sp/traverse_dict.py: -------------------------------------------------------------------------------- 1 | 2 | def main(): 3 | d = { 4 | 'foo': 'fooo', 5 | 'bar': 'baar', 6 | } 7 | for k in d: 8 | d[] 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /basic/max_sp/max_sp.py: -------------------------------------------------------------------------------- 1 | 2 | def main(): 3 | print(max([1, 3, 2])) 4 | print(max(['a', 'c', 'b'])) 5 | print(max(['2222-03-20', '', '2018-03-20 18:44:43'])) 6 | 7 | 8 | if __name__ == '__main__': 9 | main() 10 | -------------------------------------------------------------------------------- /packages/requests_sp/get.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def main(): 5 | r = requests.get('http://httpbin.org/get', params={'foo': 'bar'}) 6 | print(r.json()) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /sdks/qiniu/config/sample_config.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | class Config(object): 5 | 6 | ACCESS_KEY = 'xxx' 7 | SECRET_KEY = 'xxx' 8 | BUCKET = 'xxx' 9 | HOST = 'http://xxx' 10 | PREFIX ='uuimgs/' 11 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/isoformat_sp.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | 3 | 4 | def main(): 5 | dt = datetime.datetime.utcnow() 6 | print(dt) 7 | print(dt.isoformat()) 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /builtin_packages/re_sp/re_replace.py: -------------------------------------------------------------------------------- 1 | import re 2 | 3 | 4 | def main(): 5 | s = 'abc x123 def' 6 | s2 = re.sub('x', 'y', s) 7 | print(s) 8 | print(s2) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/blueprint_app/app.py: -------------------------------------------------------------------------------- 1 | from flask import Flask 2 | from bp import simple_page 3 | 4 | app = Flask(__name__) 5 | app.register_blueprint(simple_page) 6 | 7 | 8 | if __name__ == '__main__': 9 | app.run(debug=True) -------------------------------------------------------------------------------- /builtin_packages/csv_sp/some.csv: -------------------------------------------------------------------------------- 1 | a,b,c 2 | 100,10000,"," 3 | 101,10201,"," 4 | 102,10404,"," 5 | 103,10609,"," 6 | 104,10816,"," 7 | 110,12100,"," 8 | 111,12321,"," 9 | 112,12544,"," 10 | 113,12769,"," 11 | 114,12996,"," 12 | -------------------------------------------------------------------------------- /packages/package_snippets/__init__.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import foo 3 | print('__name__ of __init__.py: {}'.format(__name__)) 4 | 5 | 6 | def main(): 7 | print('Hello') 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /basic/bool_sp.py: -------------------------------------------------------------------------------- 1 | 2 | def main(): 3 | print(bool(-1)) 4 | print(bool(0)) 5 | print(bool(0.1)) 6 | print(bool(1)) 7 | print(bool(1.1)) 8 | print(bool(2)) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /basic/decorator_sp/hello_deco.py: -------------------------------------------------------------------------------- 1 | def identity(f): 2 | return f 3 | 4 | 5 | @identity 6 | def foo(): 7 | return 'bar' 8 | 9 | 10 | def main(): 11 | print(foo()) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /packages/bytes_io_sp/hello_bytes_io.py: -------------------------------------------------------------------------------- 1 | import io 2 | 3 | 4 | def main(): 5 | f = io.BytesIO(b"some initial binary data: \x00\x01") 6 | print(f.read()) 7 | f.close() 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /packages/fire_sp/fire_multi_func.py: -------------------------------------------------------------------------------- 1 | import fire 2 | 3 | 4 | def add(a: int, b: int): 5 | print(a + b) 6 | 7 | 8 | def multiply(a: int, b: int): 9 | print(a * b) 10 | 11 | 12 | if __name__ == '__main__': 13 | fire.Fire() 14 | -------------------------------------------------------------------------------- /basic/str_sp/upper_sp.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | s = 'hello world' 3 | print(s.upper()) 4 | print(s.capitalize()) 5 | print(s.capitalize().swapcase()) 6 | print(s.title()) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /builtin_packages/urllib_parse_sp/parse_qsl_sp.py: -------------------------------------------------------------------------------- 1 | from urllib.parse import parse_qsl 2 | 3 | 4 | def main(): 5 | qs = 'lang=en&tag=python&tag=python3' 6 | print(parse_qsl(qs)) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /packages/coroutine_sp/readme.md: -------------------------------------------------------------------------------- 1 | 2 | 3 | - [Python “黑魔法” 之 Generator Coroutines - Python - 伯乐在线](http://python.jobbole.com/85117/) 4 | - [18.5.3. Tasks and coroutines — Python 3.6.4 documentation](https://docs.python.org/3/library/asyncio-task.html) 5 | -------------------------------------------------------------------------------- /packages/tempfile_sp/hello_tempfile.py: -------------------------------------------------------------------------------- 1 | import os 2 | import tempfile 3 | 4 | 5 | def main(): 6 | tempdir = tempfile.gettempdir() 7 | print(os.path.join(tempdir, 'xxxx.txt')) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/sample_app/my_app/views/hello.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from my_app.app import app 3 | from flask_mako import render_template 4 | 5 | 6 | @app.route("/") 7 | def index(): 8 | return render_template('index.html', name='Big WM') 9 | -------------------------------------------------------------------------------- /packages/fake_snippets/hello_fake.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from faker import Factory 3 | 4 | 5 | def main(): 6 | fake = Factory.create() 7 | print("Hello, {}!".format(fake.name())) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/strftime_sp.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | 3 | 4 | def main(): 5 | now = datetime.datetime.now() 6 | print(now) 7 | print(now.strftime('%Y-%m-%d %H:%M:%S.%f')) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /packages/retrying_sp/readme.md: -------------------------------------------------------------------------------- 1 | ## refs 2 | 3 | - [rholder/retrying: Retrying is an Apache 2.0 licensed general-purpose retrying library, written in Python, to simplify the task of adding retry behavior to just about anything.](https://github.com/rholder/retrying) 4 | -------------------------------------------------------------------------------- /basic/i__dict__.py: -------------------------------------------------------------------------------- 1 | 2 | class X(object): 3 | pass 4 | 5 | 6 | def main(): 7 | print(X.__dict__) 8 | x = X() 9 | print(x.__dict__) 10 | x.xx = 'xxx' 11 | print(x.__dict__) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/sample_app/my_app/templates/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Hello ${name} 6 | 7 | 8 |

Hello ${name}!

9 | 10 | 11 | -------------------------------------------------------------------------------- /prjs/023-socket-http-client/readme.md: -------------------------------------------------------------------------------- 1 | # socket http client 2 | 3 | - [python socket GET - Stack Overflow](https://stackoverflow.com/questions/34192093/python-socket-get) 4 | - https://www.geeks3d.com/hacklab/20190110/python-3-simple-http-request-with-the-socket-module/ -------------------------------------------------------------------------------- /utils/005-string-generator/app.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | start = 1 3 | end = 100 4 | step = 1 5 | 6 | for i in range(start, end + step, step): 7 | print("{:02d}".format(i)) # 01 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /basic/dict_sp/dict_data.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | d = {'foo': 'bar', 'baz': 'qux'} 3 | print(d.items()) 4 | print(d.values()) 5 | for value in d.values(): 6 | print(value) 7 | print(d.keys()) 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /builtin_packages/math_sp/ceil_and_floor.py: -------------------------------------------------------------------------------- 1 | import math 2 | 3 | 4 | def main(): 5 | print(math.ceil(1.1)) 6 | print(math.floor(1.1)) 7 | print(math.ceil(-1.1)) 8 | print(math.floor(-1.1)) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /packages/filter_snippets/hello_filter.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | a = ['a', None, 0, '', 'b'] 6 | print(a) 7 | print(type(filter(None, a))) 8 | print(filter(None, a)) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /packages/xerox_sp/xerox_sp.py: -------------------------------------------------------------------------------- 1 | import random 2 | 3 | import xerox 4 | 5 | 6 | def main(): 7 | i = random.randint(0, 100) 8 | xerox.copy(str(i)) 9 | print(i) 10 | print(xerox.paste()) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /packages/mako_sp/render_file.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from mako.template import Template 3 | 4 | 5 | def main(): 6 | mytemplate = Template(filename='mytmpl.txt') 7 | print(mytemplate.render(name='Jack')) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /frameworks/pytest_sp/samples/test_exception.py: -------------------------------------------------------------------------------- 1 | import pytest 2 | 3 | 4 | def f(): 5 | raise SystemExit(1) 6 | 7 | 8 | def test_exception(): 9 | with pytest.raises(SystemExit): 10 | # 如果不抛异常会报错 Failed: DID NOT RAISE 11 | f() 12 | -------------------------------------------------------------------------------- /packages/pil_sp/hello_pil.py: -------------------------------------------------------------------------------- 1 | from PIL import Image 2 | 3 | 4 | def main(): 5 | im = Image.open("../_common_img/in.jpg") 6 | print(im.format, im.size, im.mode) 7 | print(type(im.mode)) 8 | im.show() 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /packages/xml_parse_sp/readme.md: -------------------------------------------------------------------------------- 1 | - [XML parsing — The Hitchhiker's Guide to Python](http://docs.python-guide.org/en/latest/scenarios/xml/) 2 | - [martinblech/xmltodict: Python module that makes working with XML feel like you are working with JSON](https://github.com/martinblech/xmltodict) -------------------------------------------------------------------------------- /builtin_packages/os_sp/hello_os.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | import os 4 | import platform 5 | 6 | 7 | def main(): 8 | print(os.name) 9 | print(platform.system()) 10 | print(platform.release()) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /builtin_packages/statistics_sp/mean_sp.py: -------------------------------------------------------------------------------- 1 | from statistics import mean 2 | 3 | 4 | def main(): 5 | print(mean([3, 3, 4])) 6 | # print(mean([])) # statistics.StatisticsError: mean requires at least one data point 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | -------------------------------------------------------------------------------- /packages/aiohttp/readme.md: -------------------------------------------------------------------------------- 1 | 2 | ## refs 3 | 4 | 5 | - [Welcome to AIOHTTP — aiohttp 3.0.2- documentation](https://aiohttp.readthedocs.io/en/stable/) 6 | - [Making 1 million requests with python-aiohttp](https://pawelmhm.github.io/asyncio/python/aiohttp/2016/04/22/asyncio-aiohttp.html) 7 | -------------------------------------------------------------------------------- /packages/peewee_sp/mysql_conn.py: -------------------------------------------------------------------------------- 1 | import pymysql 2 | 3 | 4 | MYSQL_USER = "root" 5 | MYSQL_PASSWORD = "" 6 | MYSQL_HOST = "localhost" 7 | MYSQL_PORT = 3306 8 | MYSQL_DB_NAME = "test_db2" 9 | 10 | conn = pymysql.connect(host=MYSQL_HOST, user=MYSQL_USER, password=MYSQL_PASSWORD) 11 | -------------------------------------------------------------------------------- /builtin_packages/argparse_sp/note.md: -------------------------------------------------------------------------------- 1 | - [16.4. argparse — Parser for command-line options, arguments and sub-commands — Python 3.6.4 documentation](https://docs.python.org/3/library/argparse.html) 2 | - [Argparse Tutorial — Python 2.7.14 documentation](https://docs.python.org/2/howto/argparse.html) -------------------------------------------------------------------------------- /builtin_packages/urllib_parse_sp/parse_qs_sp.py: -------------------------------------------------------------------------------- 1 | from urllib.parse import parse_qs 2 | 3 | 4 | def main(): 5 | qs = 'lang=en&tag=python&tag=python3' 6 | print(parse_qs(qs)) 7 | qs = '' 8 | print(parse_qs(qs)) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /frameworks/pytest_sp/samples/test_tmpdir.py: -------------------------------------------------------------------------------- 1 | # Builtin fixtures/function arguments 2 | def test_needsfiles(tmpdir): 3 | print(tmpdir) # tmpdir = local('/private/var/folders/78/cczt63ls3t1dh7kxy8d7m2z40000gn/T/pytest-of-clip/pytest-2/test_needsfiles0') 4 | # assert 0 5 | assert 1 6 | -------------------------------------------------------------------------------- /packages/requests_sp/hello_requests.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import requests 3 | 4 | def main(): 5 | r = requests.get('http://httpbin.org/get') 6 | print(r.status_code) 7 | print(r.headers) 8 | print(r.text) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /packages/tuple_snippets/hello_tuple.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def fun1(): 5 | return 1, 2 6 | 7 | 8 | def fun2(): 9 | return (3, 4) 10 | 11 | 12 | def main(): 13 | print(fun1()) 14 | print(fun2()) 15 | 16 | 17 | if __name__ == '__main__': 18 | main() 19 | -------------------------------------------------------------------------------- /basic/range_sp/datetime_range.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | 3 | 4 | def main(): 5 | dts = range(datetime.datetime(2018, 3, 28), datetime.datetime(2018, 3, 29), datetime.timedelta(hours=1)) 6 | print(dts) 7 | print('Hello') 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /builtin_packages/subprocess_sp/get_std_out.py: -------------------------------------------------------------------------------- 1 | import subprocess 2 | 3 | 4 | def main(): 5 | ret = subprocess.run(["echo", "hello"], stdout=subprocess.PIPE) 6 | print(ret) 7 | print(ret.stdout.strip().decode('utf-8')) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/hello_flask/app.py: -------------------------------------------------------------------------------- 1 | from flask import Flask 2 | app = Flask(__name__) 3 | 4 | 5 | @app.route("/") 6 | def hello(): 7 | return "Hello World!" 8 | 9 | 10 | def main(): 11 | app.run(debug=True) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /packages/pydantic_sp/default_value.py: -------------------------------------------------------------------------------- 1 | from pydantic import BaseModel 2 | 3 | 4 | class Foo(BaseModel): 5 | bar: str = None 6 | baz: int = 10 7 | 8 | 9 | def main(): 10 | foo = Foo.parse_obj({}) 11 | print(foo) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /basic/exception_sp/catch_sp.py: -------------------------------------------------------------------------------- 1 | 2 | 3 | def int_it(s): 4 | try: 5 | return int(s) 6 | except (ValueError, TypeError) as e: 7 | print(e) 8 | 9 | 10 | def main(): 11 | int_it(None) 12 | int_it('hello') 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /packages/dict_snippets/dict_exception.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | d = {"a": "aa"} 6 | try: 7 | d['b'] # KeyError: 'b' 8 | except Exception as e: 9 | print(e) 10 | raise e 11 | 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /packages/dict_snippets/iter_dict.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | d = { 6 | 'foo': 'bar' 7 | } 8 | print(type(d.items())) 9 | for k, v in d.items(): 10 | print('<{}: {}>'.format(k, v)) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /packages/fake_snippets/fake_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from faker import Factory 3 | 4 | 5 | def main(): 6 | fake = Factory.create() 7 | print("name: {}".format(fake.name())) 8 | print("text: {}".format(fake.text())) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /packages/requests_sp/request_cookies.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def main(): 5 | cookies = { 6 | "t": "ttt", 7 | } 8 | r = requests.get('https://httpbin.org/cookies', cookies=cookies) 9 | print(r.json()) 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /packages/tqdm_sp/manual.py: -------------------------------------------------------------------------------- 1 | import time 2 | 3 | from tqdm import tqdm 4 | 5 | 6 | def main(): 7 | pbar = tqdm(total=100) 8 | for i in range(10): 9 | pbar.update(10) 10 | time.sleep(0.5) 11 | pbar.close() 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /builtin_packages/os_sp/check_and_make_dir.py: -------------------------------------------------------------------------------- 1 | import os 2 | 3 | 4 | def make_dir_if_not_exists(dir): 5 | if not os.path.exists(dir): 6 | os.makedirs(dir) 7 | 8 | 9 | def main(): 10 | make_dir_if_not_exists('hello/world') 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /builtin_packages/inspect_sp/member.py: -------------------------------------------------------------------------------- 1 | import inspect 2 | 3 | 4 | class Foo: 5 | '''Just a foo class''' 6 | a = 'A' # the a 7 | 8 | 9 | def main(): 10 | print(inspect.getmembers(Foo)) 11 | print(inspect.getmembers(Foo())) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /packages/pypinyin_sp/pypinyin_sp.py: -------------------------------------------------------------------------------- 1 | from pypinyin import lazy_pinyin 2 | 3 | 4 | def main(): 5 | print(lazy_pinyin('中国')) 6 | print(''.join(lazy_pinyin('大西瓜'))) 7 | print(lazy_pinyin('T恤')) 8 | print(lazy_pinyin('big西瓜373a')) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /basic/run_file.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | # coding: utf-8 3 | 4 | 5 | def main(): 6 | print('Hello') 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | 12 | #!/path/to/interpreter 13 | # chmod +x my_python_script.py 14 | # https://www.pythoncentral.io/execute-python-script-file-shell/ 15 | -------------------------------------------------------------------------------- /builtin_packages/subprocess_sp/readme.md: -------------------------------------------------------------------------------- 1 | [shell - Calling an external command in Python - Stack Overflow](https://stackoverflow.com/questions/89228/calling-an-external-command-in-python) 2 | [17.5. subprocess — Subprocess management — Python 3.6.5rc1 documentation](https://docs.python.org/3/library/subprocess.html) 3 | -------------------------------------------------------------------------------- /frameworks/pytest_sp/samples/test_class.py: -------------------------------------------------------------------------------- 1 | # Group multiple tests in a class 2 | class TestClass(object): 3 | def test_one(self): 4 | x = "this" 5 | assert 'h' in x 6 | 7 | def test_two(self): 8 | x = "hello" 9 | # assert hasattr(x, 'check') 10 | assert 'h' in x 11 | -------------------------------------------------------------------------------- /packages/tqdm_sp/description.py: -------------------------------------------------------------------------------- 1 | import time 2 | 3 | from tqdm import tqdm 4 | 5 | 6 | def main(): 7 | pbar = tqdm(["a", "b", "c", "d"]) 8 | for char in pbar: 9 | pbar.set_description("Processing %s" % char) 10 | time.sleep(0.5) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /builtin_packages/enum_sp/readme.md: -------------------------------------------------------------------------------- 1 | ## refs 2 | 3 | - [8.13. enum — Support for enumerations — Python 3.6.4 documentation](https://docs.python.org/3/library/enum.html) 4 | - [使用枚举类 - 廖雪峰的官方网站](https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000/00143191235886950998592cd3e426e91687cdae696e64b000) 5 | -------------------------------------------------------------------------------- /packages/fileinput_sp/hello_fileinput.py: -------------------------------------------------------------------------------- 1 | import fileinput 2 | 3 | 4 | def main(): 5 | lines = [] 6 | for line in fileinput.input(): 7 | lines.append(line) 8 | print('OK') 9 | print('=== end ===') 10 | print(''.join(lines)) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /builtin_packages/inspect_sp/defines.py: -------------------------------------------------------------------------------- 1 | # class Foo comment 2 | class Foo: 3 | '''Just a foo class''' 4 | # a comment 5 | a = 'A' # the a 6 | 7 | # bar comment 8 | def bar(self): 9 | '''print hello bar''' 10 | print('hello bar') 11 | 12 | # abc 13 | foo = Foo() # a foo object 14 | -------------------------------------------------------------------------------- /packages/dataclasses_sp/readme.md: -------------------------------------------------------------------------------- 1 | - [PEP 557 -- Data Classes | Python.org](https://www.python.org/dev/peps/pep-0557/) 2 | - [ericvsmith/dataclasses](https://github.com/ericvsmith/dataclasses) 3 | - [A brief tour of Python 3.7 data classes – Hacker Noon](https://hackernoon.com/a-brief-tour-of-python-3-7-data-classes-22ee5e046517) 4 | -------------------------------------------------------------------------------- /utils/006-text-mosaic/app.py: -------------------------------------------------------------------------------- 1 | def text_mosaic(text): 2 | if len(text) < 2: 3 | return text 4 | else: 5 | return text[0] * len(text) 6 | 7 | 8 | def main(): 9 | print(text_mosaic('8d175a93')) 10 | print(text_mosaic('08e235d012aa')) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /builtin_packages/re_sp/re_find_all.py: -------------------------------------------------------------------------------- 1 | import re 2 | 3 | 4 | def main(): 5 | s = "a 12:22,b 32:00xc,34:0sdf" 6 | print(re.findall(r'\d\d:\d\d', s)) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | 12 | # https://stackoverflow.com/questions/4697882/how-can-i-find-all-matches-to-a-regular-expression-in-python -------------------------------------------------------------------------------- /packages/base64_snippets/hello_base64.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from base64 import urlsafe_b64encode, urlsafe_b64decode 3 | 4 | 5 | def main(): 6 | print(urlsafe_b64encode('abc/=%?&')) 7 | print(urlsafe_b64encode('100')) 8 | print(urlsafe_b64decode('MTAw')) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | -------------------------------------------------------------------------------- /packages/function_snippets/func_args.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def print_kwargs(**kwargs): 5 | print("=== print_kwargs ===") 6 | print(kwargs) 7 | 8 | 9 | def main(): 10 | print_kwargs(a="aa", b="bb") 11 | print_kwargs(**{"c": "cc", "d": "dd"}) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /packages/redis_sp/hello_redis.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import redis 3 | 4 | 5 | def main(): 6 | r = redis.StrictRedis(host='localhost', port=6379, db=0) 7 | r.set('Hello', 'World') 8 | r.delete("Hello") 9 | print('Hello, {}!'.format(r.get('Hello'))) 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /packages/redis_sp/play_with_key.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import redis 3 | 4 | 5 | def main(): 6 | r = redis.StrictRedis(host='localhost', port=6379, db=0) 7 | r.set('Hello', 'World') 8 | r.delete("Hello") 9 | print('Hello, {}!'.format(r.get('Hello'))) 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /basic/dict_sp/filter_dict.py: -------------------------------------------------------------------------------- 1 | 2 | def filter_dict_none(d): 3 | return {k: v for k, v in d.items() if v is not None} 4 | 5 | 6 | def main(): 7 | d = { 8 | 'foo': 'bar', 9 | 'baz': None, 10 | } 11 | d = filter_dict_none(d) 12 | print(d) 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /builtin_packages/urllib_parse_sp/readme.md: -------------------------------------------------------------------------------- 1 | 2 | 3 | ## refs 4 | 5 | - [Add params to given URL in Python - Stack Overflow](https://stackoverflow.com/questions/2506379/add-params-to-given-url-in-python) 6 | - [21.8. urllib.parse — Parse URLs into components — Python 3.6.4 documentation](https://docs.python.org/3/library/urllib.parse.html) 7 | -------------------------------------------------------------------------------- /packages/requests_sp/post_json.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def main(): 5 | url = 'https://httpbin.org/post' 6 | data = { 7 | 'foo': 'bar', 8 | } 9 | print(requests.post(url, json=data).json()) 10 | print(requests.post(url, data=data).json()) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /packages/typing_snippets/any_sp.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from typing import Any 3 | 4 | 5 | def foo(item: Any) -> Any: 6 | return item 7 | 8 | 9 | def bar(s: str) -> None: 10 | print(s) 11 | 12 | 13 | def main(): 14 | bar(foo('hello')) 15 | bar(foo(12)) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /utils/014-mean/app.py: -------------------------------------------------------------------------------- 1 | def mean(l): 2 | return sum(l) / (len(l) or 1) 3 | 4 | 5 | def main(): 6 | print(mean([3, 3, 4])) 7 | print(mean([])) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | 13 | 14 | # https://stackoverflow.com/questions/7716331/calculating-arithmetic-mean-one-type-of-average-in-python 15 | -------------------------------------------------------------------------------- /basic/context_manager_sp/context_manager_generator_approach.py: -------------------------------------------------------------------------------- 1 | from contextlib import contextmanager 2 | 3 | 4 | @contextmanager 5 | def custom_open(filename): 6 | f = open(filename) 7 | try: 8 | yield f 9 | finally: 10 | f.close() 11 | 12 | 13 | with custom_open('file') as f: 14 | contents = f.read() 15 | -------------------------------------------------------------------------------- /basic/return_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def f_a(): 5 | return 6 | 7 | 8 | def f_b(): 9 | return 1, 2 10 | 11 | 12 | def main(): 13 | # foo, bar = f_a() # TypeError: 'NoneType' object is not iterable 14 | foo, bar = f_b() 15 | print(foo, bar) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /packages/marshmallow_sp/readme.md: -------------------------------------------------------------------------------- 1 | 2 | ## refs 3 | 4 | - [marshmallow: simplified object serialization — marshmallow 3.0.0b7 documentation](https://marshmallow.readthedocs.io/en/latest/) 5 | - [Bachmann1234/marshmallow-polyfield: An extension to marshmallow to allow for polymorphic fields](https://github.com/Bachmann1234/marshmallow-polyfield) 6 | -------------------------------------------------------------------------------- /builtin_packages/collections_snippets/hello_counter.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from collections import Counter 3 | 4 | 5 | def main(): 6 | cnt = Counter() 7 | for n in [1, 2, 3, 2, 1, 4, 7, 6, 2]: 8 | cnt[n] += 1 9 | print(cnt.items()) 10 | print(cnt.most_common(10)) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /packages/mimetypes_sp/hello_mimetypes.py: -------------------------------------------------------------------------------- 1 | import mimetypes 2 | 3 | 4 | def main(): 5 | print(mimetypes.guess_type('xxx.png')) 6 | print(mimetypes.guess_type('xxx.txt')) 7 | print(mimetypes.guess_type('png')) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | 13 | 14 | # https://docs.python.org/3/library/mimetypes.html 15 | -------------------------------------------------------------------------------- /packages/misaka_snippets/misaka_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import misaka as m 3 | from misaka import Markdown, HtmlRenderer 4 | 5 | 6 | def main(): 7 | rndr = HtmlRenderer() 8 | md = Markdown(rndr) 9 | print md('some text') 10 | 11 | print m.html('some other text') 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /packages/pydantic_sp/inherit.py: -------------------------------------------------------------------------------- 1 | from pydantic import BaseModel 2 | 3 | 4 | class A(BaseModel): 5 | a: str = 'aaa' 6 | 7 | 8 | class B(BaseModel): 9 | b: str = 'bbb' 10 | 11 | 12 | class AB(A, B): 13 | ab: str = 'aaabbb' 14 | 15 | 16 | def main(): 17 | print(AB()) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /packages/requests_sp/post_file.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def main(): 5 | 6 | url = 'https://httpbin.org/post' 7 | with open('../_common_img/xxx.png', 'rb') as f: 8 | r = requests.post(url, files={'image': ('xxx.png', f, 'image/png')}) 9 | print(r.json()) 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /builtin_packages/csv_sp/writer_sp.py: -------------------------------------------------------------------------------- 1 | import csv 2 | 3 | 4 | def rows(n): 5 | for i in range(n): 6 | yield (i, i * i, ',') 7 | 8 | 9 | def main(): 10 | with open('some.csv', 'w', newline='') as f: 11 | writer = csv.writer(f) 12 | writer.writerows(rows(10)) 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /builtin_packages/urllib_parse_sp/urljoin_py2.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from urlparse import urljoin 3 | 4 | 5 | def test_join_url(url1, url2): 6 | print(urljoin(url1, url2)) 7 | 8 | 9 | def main(): 10 | test_join_url( 11 | 'http://example.com', 12 | 'foo', 13 | ) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /packages/filesystem/mk_dir.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | 5 | def main(): 6 | dir_path = 'temp_dir' 7 | print('dir <{}> exists: {}'.format(dir_path, os.path.exists(dir_path))) 8 | try: 9 | os.mkdir(dir_path) 10 | except OSError as e: 11 | print(e) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /utils/001-read-ids-from-file/write_ids_to_file.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def write_ids_to_file(ids_file, ids): 5 | with open(ids_file, 'w') as f: 6 | f.write('\n'.join(map(str, ids))) 7 | 8 | 9 | def main(): 10 | ids = [3, 5, 7] 11 | write_ids_to_file('ids2.txt', ids) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /builtin_packages/os_sp/read_write_os_environment_variables.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | 5 | def main(): 6 | print(os.environ["HOME"]) 7 | print(os.environ['PATH']) 8 | print(os.environ.get('NOT_EXIST')) 9 | 10 | os.environ['FOO'] = 'BAR' 11 | print(os.environ['FOO']) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/route_sp/catch_all_url.py: -------------------------------------------------------------------------------- 1 | from flask import Flask 2 | 3 | app = Flask(__name__) 4 | 5 | 6 | @app.route('/', defaults={'path': ''}) 7 | @app.route('/') 8 | def catch_all(path): 9 | return 'You want path: %s' % path 10 | 11 | 12 | if __name__ == '__main__': 13 | app.run() 14 | 15 | # http://flask.pocoo.org/snippets/57/ 16 | -------------------------------------------------------------------------------- /packages/redis_sp/redis_set.py: -------------------------------------------------------------------------------- 1 | import redis 2 | 3 | r = redis.StrictRedis(host='localhost', port=6379, db=0) 4 | 5 | 6 | def main(): 7 | key = 'foo_set' 8 | r.sadd(key, 'a') 9 | r.sadd(key, 1) 10 | print(r.sismember(key, '1')) 11 | print(r.scard(key)) 12 | print(r.smembers(key)) 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /packages/string_io_snippets/with_string_io_as_f.py: -------------------------------------------------------------------------------- 1 | import io 2 | 3 | 4 | def main(): 5 | text = 'hello world!' 6 | with io.StringIO() as f: 7 | f.write(text) 8 | f.seek(0) 9 | f.name = 'hello.txt' 10 | print(f) 11 | print(f.name) 12 | print(f.read()) 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /basic/yield_sp/chunks_with_yield.py: -------------------------------------------------------------------------------- 1 | def chunks(l, n): 2 | """ Yield successive n-sized chunks from l. """ 3 | for i in range(0, len(l), n): 4 | yield l[i:i+n] 5 | 6 | 7 | def main(): 8 | l = range(0, 10) 9 | print(list(l)) 10 | for cl in chunks(l, 4): 11 | print(list(cl)) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /builtin_packages/subprocess_sp/error_code_of_call.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from subprocess import call 3 | 4 | 5 | def main(): 6 | retcode1 = call(["ls", "./"]) 7 | print('retcode1: {}'.format(retcode1)) 8 | retcode2 = call(["ls", "./not/existed/path"]) 9 | print('retcode2: {}'.format(retcode2)) 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /packages/fire_sp/readme.md: -------------------------------------------------------------------------------- 1 | # Python fire snippets 2 | 3 | ## refs 4 | 5 | - [google/python-fire: Python Fire is a library for automatically generating command line interfaces (CLIs) from absolutely any Python object.](https://github.com/google/python-fire) 6 | - [python-fire/guide.md at master · google/python-fire](https://github.com/google/python-fire/blob/master/docs/guide.md) 7 | -------------------------------------------------------------------------------- /basic/any_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def c1(): 5 | print('c1') 6 | return True 7 | 8 | 9 | def c2(): 10 | print('c2') 11 | return False 12 | 13 | 14 | def main(): 15 | print(any([c1(), c2()])) 16 | if c1() or c2(): 17 | print(True) 18 | else: 19 | print(False) 20 | 21 | 22 | if __name__ == '__main__': 23 | main() 24 | -------------------------------------------------------------------------------- /builtin_packages/subprocess_sp/hello_shell.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from subprocess import run 3 | 4 | 5 | def main(): 6 | run(["pwd"]) 7 | run(["echo", "hello", "world"]) 8 | run(["sleep", "1"]) 9 | print(1) 10 | run(["sleep", "1"]) 11 | print(2) 12 | run(["sleep", "1"]) 13 | print(3) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /packages/package_snippets/print_all.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import test_all 3 | 4 | 5 | def main(): 6 | print('test_all.a: {}'.format(test_all.a)) 7 | print('test_all.b: {}'.format(test_all.b)) 8 | print('test_all.c: {}'.format(test_all.c)) 9 | print('test_all.all_a_a: {}'.format(test_all.all_a_a)) 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /packages/packaging_sp/packaging_sp.py: -------------------------------------------------------------------------------- 1 | from packaging import version 2 | 3 | 4 | def main(): 5 | print(version.parse('1.1.2') < (version.parse('1.1.11'))) 6 | print(version.parse('') < (version.parse('1.1.11'))) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | 12 | # https://stackoverflow.com/questions/11887762/how-do-i-compare-version-numbers-in-python 13 | -------------------------------------------------------------------------------- /prjs/023-socket-http-client/get.py: -------------------------------------------------------------------------------- 1 | import socket 2 | 3 | 4 | def main(): 5 | s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 6 | 7 | s.connect(("httpbin.org", 80)) 8 | s.sendall(b"GET /get HTTP/1.1\r\nHost: httpbin.org\r\n\r\n") 9 | data = s.recv(4096) 10 | print(data) 11 | s.close() 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /basic/dict_sp/update_dict.py: -------------------------------------------------------------------------------- 1 | 2 | def main(): 3 | d1 = { 4 | 'foo': 'a', 5 | 'bar': 'b', 6 | } 7 | print(d1) 8 | d1['foo'] = 'aa' 9 | print(d1) 10 | d2 = { 11 | 'bar': 'bbb', 12 | } 13 | d1.update(d2) 14 | print(d1) 15 | print(d1.pop('foo')) 16 | print(d1) 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/hello_datetime.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import datetime 3 | 4 | 5 | def main(): 6 | time_delta = datetime.datetime(2017, 7, 17) - datetime.datetime(2017, 7, 20) 7 | time_delta2 = datetime.timedelta(days=1) 8 | print(time_delta) 9 | print(abs(time_delta)) 10 | print(time_delta2) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /builtin_packages/inspect_sp/inspect_sp.py: -------------------------------------------------------------------------------- 1 | import inspect 2 | 3 | 4 | def f(a, b=1, *pos, **named): 5 | print('... in f') 6 | print(inspect.getcallargs(f, 2, 2, 2, 2)) 7 | 8 | 9 | def main(): 10 | print(inspect.getcallargs(f, 1, 2, 3, 4)) 11 | f('x') 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | # getmembers 17 | # signature 18 | # 19 | 20 | -------------------------------------------------------------------------------- /builtin_packages/subprocess_sp/hello_shell_old.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from subprocess import call 3 | 4 | 5 | def main(): 6 | call(["pwd"]) 7 | call(["echo", "hello", "world"]) 8 | call(["sleep", "1"]) 9 | print(1) 10 | call(["sleep", "1"]) 11 | print(2) 12 | call(["sleep", "1"]) 13 | print(3) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/blueprint_app/bp.py: -------------------------------------------------------------------------------- 1 | from flask import Blueprint, abort 2 | from jinja2 import TemplateNotFound 3 | 4 | simple_page = Blueprint('simple_page', __name__) 5 | 6 | @simple_page.route('/', defaults={'name': 'foo'}) 7 | @simple_page.route('/') 8 | def show(name): 9 | try: 10 | return name 11 | except TemplateNotFound: 12 | abort(404) 13 | -------------------------------------------------------------------------------- /packages/pil_sp/write_text.py: -------------------------------------------------------------------------------- 1 | from PIL import Image, ImageFont, ImageDraw 2 | 3 | 4 | def main(): 5 | im = Image.new("RGB", (600, 600), "#000") 6 | draw = ImageDraw.Draw(im) 7 | font = ImageFont.truetype("SourceHanSansCN-Normal.otf", 33) 8 | draw.text((10, 25), "大西瓜", font=font, fill="#F78") 9 | im.show() 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /packages/requests_sp/request_header.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def main(): 5 | headers = { 6 | "User-Agent": "Mozilla/5.0 (iPhone; CPU iOS 11.4 like Mac OS X)", 7 | "Cookie": "foo=bar; baz=qux;" 8 | } 9 | r = requests.get('https://httpbin.org/headers', headers=headers) 10 | print(r.json()) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /builtin_packages/enum_sp/tuple_enum_sp.py: -------------------------------------------------------------------------------- 1 | from enum import Enum 2 | 3 | 4 | class ErrorCode(tuple, Enum): 5 | common = (1000, '请求错误') 6 | user_not_exist = (1001, '用户不存在') 7 | 8 | 9 | def main(): 10 | e1 = ErrorCode.common 11 | print(e1) 12 | print(e1.name) 13 | print(e1.value) 14 | print(e1[0], e1[1]) 15 | 16 | 17 | if __name__ == '__main__': 18 | main() 19 | -------------------------------------------------------------------------------- /builtin_packages/inspect_sp/readme.md: -------------------------------------------------------------------------------- 1 | # Python inspect 2 | 3 | 4 | ## refs 5 | 6 | - [30.13. inspect — Inspect live objects — Python 3.7.0 documentation](https://docs.python.org/3/library/inspect.html) 7 | - [关于inspect研究 - 小明明](http://www.dongwm.com/old/archives/guanyuinspectyanjiu/) 8 | - [inspect.getcomments Python Example](https://www.programcreek.com/python/example/7133/inspect.getcomments) 9 | -------------------------------------------------------------------------------- /prjs/010-add-bom-to-file/app.py: -------------------------------------------------------------------------------- 1 | import fire 2 | 3 | 4 | def main(file): 5 | with open(file, 'r') as f: 6 | data = f.read() 7 | 8 | with open(f'out-{file}', 'wb') as f: 9 | f.write(b'\xef\xbb\xbf') 10 | f.write(data.encode('utf-8')) 11 | 12 | 13 | if __name__ == '__main__': 14 | fire.Fire(main) 15 | 16 | # https://segmentfault.com/a/1190000004321605 17 | -------------------------------------------------------------------------------- /builtin_packages/uuid_sp/hello_uuid.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import uuid 3 | 4 | 5 | def main(): 6 | print('uuid: {}'.format(str(uuid.uuid4()))) 7 | print('uuid: {}'.format(str(uuid.uuid4()).split('-')[0])) 8 | print(str(uuid.uuid4()).replace('-', '')[:24]) 9 | print(len(str(uuid.uuid4()).replace('-', '')[:24])) 10 | 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | -------------------------------------------------------------------------------- /packages/threading_snippets/var_in_thread.py: -------------------------------------------------------------------------------- 1 | 2 | 3 | # http://python.jobbole.com/86150/ 4 | # https://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/001386832845200f6513494f0c64bd882f25818a0281e80000 5 | # https://stackoverflow.com/questions/1408171/thread-local-storage-in-python 6 | # http://wiki.jikexueyuan.com/project/explore-python/Process-Thread-Coroutine/threadlocal.html 7 | -------------------------------------------------------------------------------- /prjs/024-how-long-the-course/app.py: -------------------------------------------------------------------------------- 1 | import sys 2 | import re 3 | 4 | 5 | def main(): 6 | text = sys.stdin.read() 7 | time_strs = re.findall(r'\d\d:\d\d', text) 8 | seconds = 0 9 | for time_str in time_strs: 10 | ms, ss = time_str.split(":") 11 | seconds += int(ms) * 60 + int(ss) 12 | print(seconds // 60) 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /packages/marshmallow_sp/fields_sp.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | from marshmallow import Schema, fields 3 | 4 | 5 | class UserSchema(Schema): 6 | id = fields.Int(missing=None) 7 | name = fields.Str() 8 | created_at = fields.DateTime(missing=lambda: str(datetime.datetime.now())) 9 | 10 | 11 | def main(): 12 | print(UserSchema().load({})) 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /prjs/017-url-encode/app.py: -------------------------------------------------------------------------------- 1 | import urllib.parse 2 | 3 | 4 | def main(): 5 | txt = """ 6 | 西 7 | 瓜 8 | """ 9 | strings = txt.strip().splitlines() 10 | for s in strings: 11 | print(f"{s} {urllib.parse.quote_plus(s)}") 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | 17 | # https://stackoverflow.com/questions/5607551/how-to-urlencode-a-querystring-in-python/9345102#9345102 18 | -------------------------------------------------------------------------------- /builtin_packages/inspect_sp/signature.py: -------------------------------------------------------------------------------- 1 | import inspect 2 | 3 | 4 | def foo(a, b: int) -> int: 5 | return int(a) + b 6 | 7 | 8 | def main(): 9 | foo(1, 10) 10 | sig = inspect.signature(foo) 11 | for name, parameter in sig.parameters.items(): 12 | print(name, parameter, parameter.annotation) 13 | print(sig.return_annotation) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /builtin_packages/math_sp/math_log.py: -------------------------------------------------------------------------------- 1 | import math 2 | 3 | 4 | def main(): 5 | print(math.log10(4416)) 6 | print(math.log10(1000)) 7 | print(math.log10(900)) 8 | print(math.log10(100)) 9 | print(math.log10(40)) 10 | print(math.log10(6)) 11 | 12 | print(math.log2(100)) 13 | print(math.log2(40)) 14 | print(math.log2(6)) 15 | 16 | 17 | if __name__ == '__main__': 18 | main() 19 | -------------------------------------------------------------------------------- /packages/package_snippets/print_all_2.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from test_all import * 3 | 4 | 5 | def main(): 6 | print('a: {}'.format(a)) 7 | print('b: {}'.format(b)) 8 | # print('c: {}'.format(c)) # NameError: global name 'c' is not defined 9 | # print('all_a_a: {}'.format(all_a_a)) # NameError: global name 'all_a_a' is not defined 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /packages/pydantic_sp/default_multable_value_pitfall.py: -------------------------------------------------------------------------------- 1 | from pydantic import BaseModel 2 | from typing import List 3 | 4 | 5 | class Foo(BaseModel): 6 | bar: List[str] = [] 7 | 8 | 9 | def main(): 10 | foo1 = Foo() 11 | foo1.bar.append('a') 12 | print(foo1) 13 | 14 | foo2 = Foo() 15 | foo2.bar.append('b') 16 | print(foo2) 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | -------------------------------------------------------------------------------- /builtin_packages/uuid_sp/part_or_uuid.py: -------------------------------------------------------------------------------- 1 | import uuid 2 | 3 | 4 | def get_a_part_or_uuid(): 5 | return str(uuid.uuid4())[:16] 6 | 7 | 8 | def main(): 9 | pus = [] 10 | for i in range(10000000): 11 | pus.append(get_a_part_or_uuid()) 12 | print(len(pus)) # 10000000 13 | s_pus = set(pus) 14 | print(len(s_pus)) # 10000000 15 | 16 | 17 | if __name__ == '__main__': 18 | main() 19 | -------------------------------------------------------------------------------- /packages/statsd_snippets/hello_statsd.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import statsd 3 | 4 | 5 | def main(): 6 | c = statsd.StatsClient('localhost', 8125) 7 | c.incr('foo') # Increment the 'foo' counter. 8 | c.timing('stats.timed', 320) # Record a 320ms 'stats.timed'. 9 | c.timing('stats.timed,service_name={},status_code={}'.format('bar', 200), 120) 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /builtin_packages/base64_sp/base64_decode.py: -------------------------------------------------------------------------------- 1 | import base64 2 | 3 | 4 | def print_b64decode(bs): 5 | print(base64.b64decode(bs)) 6 | 7 | 8 | def main(): 9 | print_b64decode(b'////') 10 | print_b64decode(b'YQ==') 11 | print_b64decode(b'YWE=') 12 | print_b64decode(b'YWFh') 13 | print_b64decode(b'YWFhYQ==') 14 | print_b64decode(b'BkzPUg==') 15 | 16 | 17 | if __name__ == '__main__': 18 | main() 19 | -------------------------------------------------------------------------------- /packages/typing_snippets/self_sp.py: -------------------------------------------------------------------------------- 1 | from typing import TypeVar, Type 2 | 3 | T = TypeVar('T', bound='C') 4 | class C: 5 | def __init__(self, a: str, b: int): 6 | self.a = a 7 | self.b = b 8 | 9 | @classmethod 10 | def factory(cls: Type[T]) -> T: 11 | return C('hello', 123) 12 | 13 | 14 | c = C.factory() 15 | print(c.a, c.b) 16 | 17 | 18 | # https://github.com/python/mypy/issues/1212 19 | -------------------------------------------------------------------------------- /basic/range_sp/range.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | print(range(0)) 6 | print(range(1)) 7 | print(range(0, 1)) 8 | print(range(0, 1, 1)) 9 | print(range(10, 15, 4)) 10 | print(range(-2)) 11 | print(range(0, -2, -1)) 12 | 13 | print(list(range(10))) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | 19 | # https://docs.python.org/3/library/functions.html#func-range 20 | -------------------------------------------------------------------------------- /packages/typing_snippets/callable_sp.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from typing import Callable 3 | 4 | 5 | def feeder(get_next_item: Callable[[], str]) -> None: 6 | pass 7 | 8 | 9 | def async_query(on_success: Callable[[int], None], 10 | on_error: Callable[[int, Exception], None]) -> None: 11 | pass 12 | 13 | 14 | def main(): 15 | print('Hello') 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /builtin_packages/csv_sp/reader_for_tsv_sp.py: -------------------------------------------------------------------------------- 1 | import csv 2 | 3 | 4 | def main(): 5 | with open('some.tsv', 'r', newline='') as f: 6 | reader = csv.reader(f, delimiter='\t') 7 | for row in reader: 8 | print(row) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | 14 | 15 | # https://stackoverflow.com/questions/13992971/reading-and-parsing-a-tsv-file-then-manipulating-it-for-saving-as-csv-efficie 16 | -------------------------------------------------------------------------------- /packages/dict_snippets/dict_update.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | d = {} 6 | print(d) 7 | d['a'] = 'aa' 8 | d.update(b='bb') 9 | print(d) 10 | d.pop('a') 11 | print(d) 12 | print(d.popitem()) 13 | print(d) 14 | d = { 15 | 'c': 'cc', 16 | 'd': 'dd', 17 | } 18 | print(d) 19 | d.clear() 20 | print(d) 21 | 22 | 23 | if __name__ == '__main__': 24 | main() 25 | -------------------------------------------------------------------------------- /packages/heapq_sp/heapq_sp.py: -------------------------------------------------------------------------------- 1 | from heapq import * 2 | 3 | 4 | def main(): 5 | h = [] # 毕竟 heap 是可以用 list 实现的，所以这个 heapq 直接用 list 操作也没毛病 6 | # 不确定有没有初始化的过程，以及中间强行破坏后会怎么样 7 | heappush(h, (5, 'write code')) 8 | heappush(h, (7, 'release product')) 9 | heappush(h, (1, 'write spec')) 10 | heappush(h, (3, 'create tests')) 11 | print(heappop(h)) 12 | print(h) 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /packages/socket_sp/socket_client_sp.py: -------------------------------------------------------------------------------- 1 | import socket 2 | 3 | 4 | def main(): 5 | HOST = '127.0.0.1' # 服务器的主机名或者 IP 地址 6 | PORT = 65432 # 服务器使用的端口 7 | 8 | with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: 9 | s.connect((HOST, PORT)) 10 | s.sendall(b'Hello, world') 11 | data = s.recv(1024) 12 | 13 | print('Received', repr(data)) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /builtin_packages/csv_sp/reader_sp.py: -------------------------------------------------------------------------------- 1 | import csv 2 | 3 | 4 | def main(): 5 | with open('some.csv', 'r', newline='') as f: 6 | reader = csv.reader(f) 7 | next(reader) # pass the first line 8 | for row in reader: 9 | print(row) 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | 15 | # https://stackoverflow.com/questions/11349333/when-processing-csv-data-how-do-i-ignore-the-first-line-of-data 16 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/sample_app/readme.md: -------------------------------------------------------------------------------- 1 | 2 | ``` 3 | export PYTHONPATH=/frameworks/flask_snippets/sample_app:$PYTHONPATH 4 | ``` 5 | 6 | 7 | ref: 8 | 9 | - [flask/examples/flaskr at master · pallets/flask](https://github.com/pallets/flask/tree/master/examples/flaskr) 10 | - [flask/examples/patterns/largerapp at master · pallets/flask](https://github.com/pallets/flask/tree/master/examples/patterns/largerapp) 11 | -------------------------------------------------------------------------------- /packages/filesystem/files_in_path.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | 5 | def main(): 6 | dir = './' 7 | print(os.listdir(dir)) 8 | file_paths = [] 9 | for file_name in os.listdir(dir): 10 | file_paths.append(os.path.join(dir, file_name)) 11 | print(file_paths) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | 17 | # https://stackoverflow.com/questions/3207219/how-do-i-list-all-files-of-a-directory 18 | -------------------------------------------------------------------------------- /packages/typing_snippets/int_it.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | print(int('1')) 6 | try: 7 | print(int('x1')) 8 | except ValueError as e: 9 | print(e) 10 | try: 11 | print(int('xx')) 12 | except ValueError as e: 13 | print(e) 14 | try: 15 | print(int(None)) 16 | except TypeError as e: 17 | print(e) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/timedelta_sp.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import datetime 3 | import time 4 | 5 | 6 | def main(): 7 | now1 = datetime.datetime.now() 8 | time.sleep(1.1) 9 | now2 = datetime.datetime.now() 10 | print(now2 - now1) 11 | past = now2 - datetime.timedelta(days=1, seconds=1, microseconds=1, milliseconds=1, minutes=1, hours=1, weeks=1) 12 | print(past) 13 | 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /packages/dict_snippets/dict_compare.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | d1 = {"a": 1} 6 | d1_1 = {"a": 1} 7 | d2 = {"l": [1, 2, 3]} 8 | d2_1 = {"l": [1, 2, 3]} 9 | d3 = {"d": {"i": 1}} 10 | d3_1 = {"d": {"i": 1}} 11 | d3_2 = {"d": {"i": 1}, "i": 2} 12 | print(d1 == d1_1) 13 | print(d2 == d2_1) 14 | print(d3 == d3_1) 15 | print(d3 == d3_2) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /packages/gevent_snippets/hello_gevent.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from gevent import monkey; monkey.patch_all() 3 | import gevent 4 | import urllib2 5 | 6 | 7 | def main(): 8 | urls = ['www.google.com', 'www.example.com', 'www.python.org'] 9 | jobs = [gevent.spawn(socket.gethostbyname, url) for url in urls] 10 | gevent.joinall(jobs, timeout=2) 11 | print([job.value for job in jobs]) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | -------------------------------------------------------------------------------- /packages/redis_sp/batch_read_performance.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import redis 3 | from profilehooks import profile 4 | 5 | 6 | @profile 7 | def read_from_redis(r, n, d): 8 | for i in xrange(n): 9 | d[str(n - 1 - i)] = r.get(str(i)) 10 | 11 | 12 | def main(): 13 | d = {} 14 | r = redis.StrictRedis(host='localhost', port=6379, db=0) 15 | 16 | read_from_redis(r, 10000, d) 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | -------------------------------------------------------------------------------- /packages/requests_sp/sessions.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def main(): 5 | s = requests.Session() 6 | s.get('http://httpbin.org/cookies/set/sessioncookie/123456789') 7 | r = s.get("http://httpbin.org/cookies") 8 | print(r.text) 9 | r = requests.get("http://httpbin.org/cookies") 10 | print(r.text) 11 | 12 | 13 | if __name__ == '__main__': 14 | main() 15 | 16 | # http://docs.python-requests.org/en/latest/user/advanced/ 17 | -------------------------------------------------------------------------------- /packages/schematics_snippets/schematics_types.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import datetime 3 | from schematics.models import Model 4 | from schematics.types import StringType, IntType, DateTimeType, ModelType 5 | 6 | 7 | class MyModel(Model): 8 | 9 | s = StringType() 10 | i = IntType() 11 | 12 | 13 | def main(): 14 | mm = MyModel({"s": "ss", "i": "1"}) 15 | print(mm.to_primitive()) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/before_after_request_sp/bp.py: -------------------------------------------------------------------------------- 1 | from flask import Blueprint 2 | 3 | bp = Blueprint('bp', __name__) 4 | 5 | @bp.before_request 6 | def before_request(): 7 | print('>>> bp before_request') 8 | 9 | 10 | @bp.after_request 11 | def after_request(resp): 12 | print('>>> bp after_request') 13 | print(resp) 14 | return resp 15 | 16 | 17 | @bp.route('/', methods=['GET', 'POST']) 18 | def index(): 19 | return 'bp index' 20 | -------------------------------------------------------------------------------- /packages/dataclasses_sp/default_sp.py: -------------------------------------------------------------------------------- 1 | from dataclasses import dataclass 2 | 3 | 4 | @dataclass 5 | class C: 6 | x: int 7 | y: int 8 | z: int = 10 9 | # t: int # TypeError: non-default argument 't' follows default argument 10 | 11 | 12 | def main(): 13 | c = C(1, 2) 14 | print(c) 15 | # c = C(1) # TypeError: __init__() missing 1 required positional argument: 'y' 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/errorhandler_app/readme.md: -------------------------------------------------------------------------------- 1 | ## refs 2 | 3 | - [python - Global error handler for any exception - Stack Overflow](https://stackoverflow.com/questions/29332056/global-error-handler-for-any-exception) 4 | - [blueprint error handler not working?? · Issue #1935 · pallets/flask](https://github.com/pallets/flask/issues/1935) 5 | - [Allow blueprint-local routing for errorhandlers · Issue #503 · pallets/flask](https://github.com/pallets/flask/issues/503) 6 | -------------------------------------------------------------------------------- /prjs/006-make-1-million-requests-with-python-aiohttp/s1_aiohttp.py: -------------------------------------------------------------------------------- 1 | import asyncio 2 | from aiohttp import ClientSession 3 | 4 | 5 | async def hello(url): 6 | async with ClientSession() as session: 7 | async with session.get(url) as response: 8 | response = await response.read() 9 | print(response.decode('utf-8')) 10 | 11 | 12 | loop = asyncio.get_event_loop() 13 | loop.run_until_complete(hello("http://httpbin.org/headers")) 14 | -------------------------------------------------------------------------------- /packages/filesystem/rm_dir.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | import shutil 4 | 5 | 6 | def main(): 7 | dir_path = 'temp_dir' 8 | print('dir <{}> exists: {}'.format(dir_path, os.path.exists(dir_path))) 9 | try: 10 | os.rmdir(dir_path) 11 | except OSError as e: 12 | print(e) 13 | try: 14 | shutil.rmtree(dir_path) 15 | except OSError as e: 16 | print(e) 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | -------------------------------------------------------------------------------- /packages/log_snippets/logger_sp.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import logging 3 | 4 | 5 | def main(): 6 | logging.basicConfig( 7 | level=logging.INFO, 8 | format='%(asctime)s %(name)s %(levelname)s %(module)s %(funcName)s: %(message)s', 9 | datefmt='%Y-%m-%d %H:%M:%S' 10 | ) 11 | logger = logging.getLogger() 12 | logger.info('hello world i') 13 | logger.warning('hello world w') 14 | 15 | if __name__ == '__main__': 16 | main() 17 | -------------------------------------------------------------------------------- /packages/mako_sp/hello_mako.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from mako.template import Template 3 | 4 | 5 | def simple_render(): 6 | mytemplate = Template("hello world!") 7 | print(mytemplate.render()) 8 | 9 | 10 | def render_arg(): 11 | mytemplate = Template("hello, ${name}!") 12 | print(mytemplate.render(name="jack")) 13 | 14 | 15 | def main(): 16 | simple_render() 17 | render_arg() 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | 23 | -------------------------------------------------------------------------------- /utils/002-show-progress/app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import sys 3 | import time 4 | 5 | 6 | def show_progress(p, n): 7 | sys.stdout.write('\r{}/{} ({:.2%})'.format(p, n, p / n)) 8 | 9 | 10 | def main(): 11 | print('=== start ===') 12 | n = 15 13 | l = range(n) 14 | for i, _ in enumerate(l): 15 | show_progress(i + 1, n) 16 | time.sleep(0.1) 17 | print('\n=== end ===') 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /basic/decorator_sp/register_deco.py: -------------------------------------------------------------------------------- 1 | _functions = {} 2 | 3 | 4 | def register(f): 5 | global _functions 6 | _functions[f.__name__] = f 7 | return f 8 | 9 | 10 | @register 11 | def foo(): 12 | return 'bar' 13 | 14 | 15 | @register 16 | def baz(): 17 | return 'qux' 18 | 19 | 20 | def main(): 21 | print(_functions) 22 | print(_functions['foo']()) 23 | print(_functions['baz']()) 24 | 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /basic/int_sp/int_str.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | i = 105555555 3 | s = str(i) 4 | print(s) 5 | print(int(s)) 6 | 7 | hex_str1 = hex(i) 8 | print(hex_str1) 9 | print(type(hex_str1)) 10 | print(int(hex_str1, 16)) 11 | 12 | hex_str2 = '{:x}'.format(i) 13 | print(hex_str2) 14 | print(int(hex_str2, 16)) 15 | 16 | print('{:04x}'.format(1)) 17 | print('{:04x}'.format(100000)) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /basic/str_sp/str_num.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def str_isdigit(): 5 | print("=== str_isdigit ===") 6 | print('"123".isdigit(): {}'.format('123'.isdigit())) 7 | print('"0x1234".isdigit(): {}'.format('0x1234'.isdigit())) 8 | print('"0123".isdigit(): {}'.format('0123'.isdigit())) 9 | print('"xc123".isdigit(): {}'.format('xc123'.isdigit())) 10 | 11 | 12 | def main(): 13 | str_isdigit() 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/datetime_operation.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | 3 | 4 | def main(): 5 | dt1 = datetime.datetime(2018, 6, 27) 6 | dt2 = datetime.datetime(2018, 6, 28) 7 | print('max: {}'.format(max(dt1, dt2))) 8 | print('minus: {}'.format(dt1 - dt2)) 9 | # print('plus: {}'.format(dt1 + dt2)) # TypeError: unsupported operand type(s) for +: 'datetime.datetime' and 'datetime.datetime' 10 | 11 | 12 | if __name__ == '__main__': 13 | main() 14 | -------------------------------------------------------------------------------- /packages/asyncio_sp/readme.md: -------------------------------------------------------------------------------- 1 | - async 理解成标记，标记这个函数是可以异步的，从而可以被加入 event 中 2 | - await 理解成后面的内容可能是阻塞的，需要异步返回，这个点可以用来切换到其他的 event 去执行 3 | 4 | 5 | ## refs 6 | 7 | - [asyncio - 廖雪峰的官方网站](https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000/001432090954004980bd351f2cd4cc18c9e6c06d855c498000) 8 | - [async/await - 廖雪峰的官方网站](https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000/00144661533005329786387b5684be385062a121e834ac7000) 9 | -------------------------------------------------------------------------------- /packages/mypy_sp/typed_dict.py: -------------------------------------------------------------------------------- 1 | from mypy_extensions import TypedDict 2 | 3 | 4 | class MovieA(TypedDict): 5 | name: str 6 | year: int 7 | 8 | 9 | MovieB = TypedDict('Movie', {'name': str, 'year': int}) 10 | 11 | 12 | def main(): 13 | m1 = MovieA(name='foo', year=2028) 14 | m2 = MovieB(name='bar', year=2029) 15 | print(m1) 16 | print(m2) 17 | print(type(m1)) 18 | print(type(m2)) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /basic/exception_sp/exception_to_str.py: -------------------------------------------------------------------------------- 1 | def main(): 2 | print('Hello') 3 | try: 4 | # raise Exception('hello') 5 | raise Exception('foo', 'bar') 6 | except Exception as e: 7 | print(e) 8 | print(repr(e)) 9 | 10 | 11 | if __name__ == '__main__': 12 | main() 13 | 14 | 15 | # str -> https://github.com/python/cpython/blob/master/Objects/exceptions.c#L104 16 | # repr -> https://github.com/python/cpython/blob/master/Objects/exceptions.c#L117 -------------------------------------------------------------------------------- /basic/type_sp/type_sp.py: -------------------------------------------------------------------------------- 1 | class Foo: 2 | """hello foo""" 3 | pass 4 | 5 | 6 | def main(): 7 | print(type(1)) 8 | print(type(3.3)) 9 | print(type('s')) 10 | print(type(object())) 11 | print(type(object)) 12 | print(type(int)) 13 | print(type(Foo())) 14 | print(type(Foo)) 15 | print('===') 16 | print(Foo.__name__) 17 | print(Foo.__class__) 18 | print(Foo.__doc__) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /builtin_packages/argparse_sp/argparse_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import argparse 3 | 4 | 5 | def main(): 6 | parser = argparse.ArgumentParser() 7 | parser.add_argument("-d", "--debug", action="store_true", help='debug mode on') 8 | parser.add_argument("your_name", help="your name") 9 | 10 | args = parser.parse_args() 11 | 12 | print(args) 13 | print(args.debug) 14 | print(args.your_name) 15 | 16 | 17 | if __name__ == '__main__': 18 | main() 19 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/datetime_util.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import datetime 3 | 4 | 5 | def _datetime(d): 6 | return datetime.datetime.strptime(d, '%Y-%m-%d %H:%M:%S') 7 | 8 | 9 | def _strftime(d): 10 | return d.strftime('%Y-%m-%d %H:%M:%S') 11 | 12 | 13 | def main(): 14 | now = datetime.datetime.now() 15 | print(_strftime(now)) 16 | t = _datetime("2017-09-03 17:37:48") 17 | print(t) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /frameworks/pytest_sp/samples/test_fixtures.py: -------------------------------------------------------------------------------- 1 | import pytest 2 | 3 | 4 | @pytest.fixture 5 | def smtp(): 6 | import smtplib 7 | return smtplib.SMTP("smtp.gmail.com", 587, timeout=5) 8 | 9 | 10 | def test_ehlo(smtp): 11 | response, msg = smtp.ehlo() 12 | assert response == 250 13 | assert 0 # for demo purposes 14 | 15 | 16 | # [pytest fixtures: explicit, modular, scalable — pytest documentation](https://docs.pytest.org/en/latest/fixture.html#fixtures) 17 | -------------------------------------------------------------------------------- /packages/typing_snippets/new_type_sp.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from typing import NewType 3 | 4 | UserId = NewType('UserId', int) 5 | 6 | 7 | def get_user_name(user_id: UserId) -> str: 8 | return { 9 | 1: "foo", 10 | 2: "bar" 11 | }.get(user_id) 12 | 13 | 14 | def main(): 15 | some_id = UserId(1) 16 | print(some_id) 17 | print(get_user_name(some_id)) 18 | print(get_user_name(1)) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /packages/pydantic_sp/fields.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | from pydantic import BaseModel 3 | 4 | 5 | class MyModel(BaseModel): 6 | dt: datetime.datetime 7 | 8 | 9 | def main(): 10 | model = MyModel.parse_obj({ 11 | "dt": "2018-04-13 17:42:42" 12 | }) 13 | print(model.dt) 14 | 15 | model = MyModel.parse_obj({ 16 | "dt": "2018-04-13 16:06:11.844265+08:00" 17 | }) 18 | print(model.dt) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /builtin_packages/urllib_parse_sp/urlencode_sp.py: -------------------------------------------------------------------------------- 1 | from urllib.parse import urlencode, unquote, quote 2 | 3 | 4 | def main(): 5 | params = {'lang': 'en', 'tag': 'python'} 6 | print(urlencode(params)) 7 | 8 | params = {'foo': 'Az0 +-_./\\'} 9 | print(urlencode(params)) 10 | 11 | params = {'bwm': '大西瓜'} 12 | print(urlencode(params)) 13 | 14 | print(quote('大西瓜')) 15 | print(unquote(quote('大西瓜'))) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /packages/log_snippets/readme.md: -------------------------------------------------------------------------------- 1 | - [日志（Logging） — The Hitchhiker's Guide to Python](http://pythonguidecn.readthedocs.io/zh/latest/writing/logging.html) 2 | - [Logging HOWTO — Python 3.6.4 documentation](https://docs.python.org/3.6/howto/logging.html) 3 | - [16.6. logging — Logging facility for Python — Python 3.6.4 documentation](https://docs.python.org/3.6/library/logging.html) 4 | - https://stackoverflow.com/questions/14058453/making-python-loggers-output-all-messages-to-stdout-in-addition-to-log 5 | -------------------------------------------------------------------------------- /packages/stdout_snippets/print_to_stderr.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from __future__ import print_function 3 | import sys 4 | 5 | 6 | def eprint(*args, **kwargs): 7 | print(*args, file=sys.stderr, **kwargs) 8 | 9 | 10 | def main(): 11 | sys.stderr.write('spam\n') 12 | print('spam', file=sys.stderr) 13 | eprint('spam') 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | 19 | 20 | # https://stackoverflow.com/questions/5574702/how-to-print-to-stderr-in-python 21 | -------------------------------------------------------------------------------- /builtin_packages/collections_snippets/hello_deque.py: -------------------------------------------------------------------------------- 1 | from collections import deque 2 | 3 | 4 | def main(): 5 | d = deque('ab') 6 | print(d) 7 | for elem in d: 8 | print(elem) 9 | d.append('c') 10 | print(d) 11 | print(d.pop()) 12 | print(d.popleft()) 13 | print(d) 14 | d.extend('def') 15 | d.extendleft('ghi') 16 | print(d) 17 | d = deque('jklmnop', 3) 18 | print(d) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | 24 | -------------------------------------------------------------------------------- /builtin_packages/csv_sp/append_writer.py: -------------------------------------------------------------------------------- 1 | import csv 2 | 3 | 4 | def rows(start, stop): 5 | for i in range(start, stop): 6 | yield (i, i * i, ',') 7 | 8 | 9 | def write_rows(start, stop): 10 | with open('some.csv', 'a', newline='') as f: 11 | writer = csv.writer(f) 12 | writer.writerows(rows(start, stop)) 13 | 14 | 15 | def main(): 16 | write_rows(100, 105) 17 | write_rows(110, 115) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | 23 | -------------------------------------------------------------------------------- /sdks/qiniu/config/__init__.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | __all__ = ['QiniuConfig'] 5 | 6 | app_config_file_name = os.environ.get('QINIU_CONFIG', '') 7 | if not app_config_file_name: 8 | raise Exception('No QINIU_CONFIG in os environ, should be something like: xxx_config') 9 | app_config_module = __import__('config.{}'.format(app_config_file_name), fromlist=['Config']) 10 | 11 | QiniuConfig = app_config_module.Config 12 | 13 | # should set env: export QINIU_CONFIG=xxx_config 14 | -------------------------------------------------------------------------------- /basic/func_with_docstring.py: -------------------------------------------------------------------------------- 1 | 2 | def hello(name, times=1): 3 | """say hello to x, y times 4 | :param name: name to say greeting 5 | :param times: say hello how many times 6 | :type name: str 7 | :type times: int 8 | :return: the whole greeting str 9 | :rtype: str 10 | """ 11 | hs = 'hello ' * times 12 | return f'{hs}{name}!' 13 | 14 | 15 | def main(): 16 | s = hello('foo', 3) 17 | print(s) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /packages/jieba_sp/recipe.py: -------------------------------------------------------------------------------- 1 | import jieba 2 | 3 | 4 | def cut_txt(txt: str): 5 | seg_list = jieba.cut(txt, cut_all=False) 6 | print(f"{txt} -> " + " | ".join(seg_list)) # 精确模式 7 | 8 | 9 | 10 | def main(): 11 | jieba.load_userdict('recipe.txt') 12 | 13 | titles = [ 14 | '冻干水果牛轧糖', 15 | '老北京烫饭', 16 | '芋头蛋卷', 17 | '葱油芋头', 18 | ] 19 | for title in titles: 20 | cut_txt(title) 21 | 22 | 23 | if __name__ == '__main__': 24 | main() 25 | -------------------------------------------------------------------------------- /packages/redis_sp/batch_insert_performance.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import time 3 | import redis 4 | from profilehooks import profile 5 | 6 | 7 | @profile 8 | def insert_to_redis(r, n, start): 9 | for i in xrange(n): 10 | r.set(str(i) + str(start), 'x') 11 | 12 | 13 | def main(): 14 | start = int(time.time()) 15 | r = redis.StrictRedis(host='localhost', port=6379, db=0) 16 | 17 | insert_to_redis(r, 10000, start) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /utils/013-this-week/app.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | 3 | 4 | def this_monday_and_related_sunday(): 5 | now = datetime.datetime.now() 6 | today = datetime.datetime(now.year, now.month, now.day) 7 | this_monday = today - datetime.timedelta(now.weekday()) 8 | related_sunday = this_monday + datetime.timedelta(6) 9 | return this_monday, related_sunday 10 | 11 | 12 | def main(): 13 | print(this_monday_and_related_sunday()) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /builtin_packages/inspect_sp/source_code.py: -------------------------------------------------------------------------------- 1 | import inspect 2 | 3 | from defines import Foo, foo 4 | 5 | 6 | def main(): 7 | print(inspect.getdoc(Foo)) 8 | print(inspect.getsource(Foo)) 9 | print(inspect.getsourcefile(Foo)) 10 | print(inspect.getsourcelines(Foo)) 11 | print(inspect.getcomments(Foo)) 12 | print(inspect.getcomments(Foo.a)) 13 | print(inspect.getcomments(Foo.bar)) 14 | print(inspect.getcomments(foo)) 15 | 16 | 17 | if __name__ == '__main__': 18 | main() 19 | -------------------------------------------------------------------------------- /packages/peewee_sp/models.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | from peewee import * 3 | 4 | from .mysql_db import db 5 | 6 | 7 | class Person(Model): 8 | 9 | name = CharField() 10 | birthday = DateField() 11 | is_relative = BooleanField() 12 | 13 | class Meta: 14 | database = db 15 | table_name = 'person' 16 | 17 | 18 | class Ppp(Model): 19 | name = CharField() 20 | create_time = DateTimeField(default=datetime.datetime.now) 21 | 22 | class Meta: 23 | database = db 24 | -------------------------------------------------------------------------------- /packages/socket_sp/readme.md: -------------------------------------------------------------------------------- 1 | # readme 2 | 3 | - [套接字编程指南 — Python 3.8.0 文档](https://docs.python.org/zh-cn/3/howto/sockets.html) 4 | - [Socket Programming in Python (Guide) – Real Python](https://realpython.com/python-sockets/) 5 | - [[译]Python 中的 Socket 编程（指南）](https://keelii.com/2018/09/24/socket-programming-in-python/) 6 | - [Python 网络编程 | 菜鸟教程](https://www.runoob.com/python/python-socket.html) 7 | - [socket — Low-level networking interface — Python 3.8.0 documentation](https://docs.python.org/3/library/socket.html) -------------------------------------------------------------------------------- /basic/class_sp/class_demo.py: -------------------------------------------------------------------------------- 1 | class A: 2 | 3 | def __init__(self): 4 | pass 5 | 6 | def hello(self): 7 | print('A: Hello') 8 | 9 | 10 | class A2(A): 11 | 12 | def __init__(self): 13 | super(A2, self).__init__() 14 | 15 | def hello(self): 16 | super(A2, self).hello() 17 | print('A2: Hello') 18 | 19 | 20 | def main(): 21 | a = A() 22 | a.hello() 23 | a2 = A2() 24 | a2.hello() 25 | 26 | 27 | if __name__ == '__main__': 28 | main() 29 | -------------------------------------------------------------------------------- /packages/peewee_sp/mysql_db.py: -------------------------------------------------------------------------------- 1 | from playhouse.db_url import connect 2 | 3 | 4 | MYSQL_USER = "root" 5 | MYSQL_PASSWORD = "" 6 | MYSQL_HOST = "localhost" 7 | MYSQL_PORT = 3306 8 | MYSQL_DB_NAME = "test_db" 9 | MYSQL_CHARSET = 'utf8mb4' 10 | MYSQL_DB_URL = "mysql://{user}:{password}@{host}:{port}/{db_name}?charset=utf8mb4".format( 11 | user=MYSQL_USER, 12 | password=MYSQL_PASSWORD, 13 | host=MYSQL_HOST, 14 | port=MYSQL_PORT, 15 | db_name=MYSQL_DB_NAME, 16 | ) 17 | db = connect(MYSQL_DB_URL) 18 | -------------------------------------------------------------------------------- /packages/requests_sp/request_through_proxy.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def main(): 5 | proxies = {'http': 'http://localhost:8886', 'https': 'http://localhost:8886'} 6 | r = requests.get('https://httpbin.org/get', proxies=proxies, verify=False) 7 | print(r.json()) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | 13 | 14 | # http://www.cnblogs.com/clip/p/python-requests-proxy-and-ssl-config.html 15 | # https://stackoverflow.com/questions/10667960/python-requests-throwing-sslerror 16 | -------------------------------------------------------------------------------- /packages/gevent_snippets/patch_stdout.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from gevent import monkey; monkey.patch_sys() 3 | import gevent 4 | # import time 5 | 6 | 7 | def f(n): 8 | # time.sleep(0.01) 9 | for i in range(n): 10 | print gevent.getcurrent(), i 11 | # 是失败的 12 | 13 | 14 | def main(): 15 | g1 = gevent.spawn(f, 5) 16 | g2 = gevent.spawn(f, 5) 17 | g3 = gevent.spawn(f, 5) 18 | gevent.joinall([g1, g2, g3]) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/timezone_sp.py: -------------------------------------------------------------------------------- 1 | import time 2 | import datetime 3 | 4 | 5 | def main(): 6 | print(time.timezone) 7 | print(time.tzname) 8 | print(time.localtime()) 9 | print(time.localtime().tm_isdst) 10 | print(time.altzone) 11 | utc_offset_sec = time.altzone if time.localtime().tm_isdst else time.timezone 12 | utc_offset = datetime.timedelta(seconds=-utc_offset_sec) 13 | print(datetime.timezone(offset=utc_offset)) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /builtin_packages/subprocess_sp/run_apple_script.py: -------------------------------------------------------------------------------- 1 | import subprocess 2 | 3 | 4 | def main(): 5 | ret = subprocess.run(['osascript', '-e', r'''set input_text to text returned of (display dialog "Please input Text here:" default answer "hello world" with title "exchange to python")'''], stdout=subprocess.PIPE, stderr=subprocess.PIPE) 6 | print(ret) 7 | print(ret.stdout.strip().decode('utf-8')) 8 | 9 | 10 | if __name__ == '__main__': 11 | main() 12 | 13 | 14 | # https://stackoverflow.com/a/24446693/3936457 15 | -------------------------------------------------------------------------------- /packages/mako_sp/python_block.py: -------------------------------------------------------------------------------- 1 | from mako.template import Template 2 | 3 | 4 | tpl = """ 5 | a, b = ${a}, ${b} 6 | <% 7 | show_max = not (a < 0 and b < 0) 8 | %> 9 | % if show_max: 10 | max(a, b) = ${max(a, b)} 11 | % else: 12 | min(a, b) = ${min(a, b)} 13 | % endif 14 | """ 15 | 16 | 17 | def main(): 18 | mytemplate = Template(tpl) 19 | print(mytemplate.render(a=1, b=2)) 20 | print(mytemplate.render(a=-1, b=2)) 21 | print(mytemplate.render(a=-1, b=-2)) 22 | 23 | 24 | if __name__ == '__main__': 25 | main() 26 | -------------------------------------------------------------------------------- /prjs/008-marshmallow-schematics/app.py: -------------------------------------------------------------------------------- 1 | from schemas import FooSchema 2 | from dtos import FooDTO 3 | from daos import FooDAO 4 | 5 | 6 | def main(): 7 | dao = FooDAO('baz_dao') 8 | d = {"bar": "baz_d"} 9 | 10 | dto = FooDTO(d) 11 | print(dto.serialize()) 12 | 13 | dto, errors = FooSchema().dump(dao) 14 | print(dto.serialize()) 15 | 16 | # print(FooSchema().load(dao)) 17 | # print(FooSchema().load(d)) 18 | # print(FooSchema().dump(dao)) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /basic/context_manager_sp/context_manager_class_approach.py: -------------------------------------------------------------------------------- 1 | class CustomOpen(object): 2 | def __init__(self, filename): 3 | self.file = open(filename) 4 | 5 | def __enter__(self): 6 | return self.file 7 | 8 | def __exit__(self, ctx_type, ctx_value, ctx_traceback): 9 | self.file.close() 10 | 11 | 12 | def main(): 13 | with CustomOpen('test_file') as f: 14 | # a = 1 / 0 15 | contents = f.read(1000) 16 | print(contents) 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | -------------------------------------------------------------------------------- /basic/yield_sp/yield_.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def my_range(n): 5 | for i in range(0, n): 6 | yield i 7 | 8 | 9 | def main(): 10 | print('type: {}, {}'.format(type(my_range(2)), my_range(2))) 11 | print('type: {}, {}'.format(type(list(my_range(2))), list(my_range(2)))) 12 | # print(len(my_range(2))) # TypeError: object of type 'generator' has no len() 13 | # print(my_range(2)[0]) # TypeError: 'generator' object has no attribute '__getitem__' 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /builtin_packages/sys_sp/sys_stdin.py: -------------------------------------------------------------------------------- 1 | import sys 2 | 3 | 4 | def main(): 5 | t = sys.stdin.read() # will block if no std input 6 | print(t) 7 | 8 | 9 | if __name__ == '__main__': 10 | main() 11 | 12 | # https://stackoverflow.com/questions/1450393/how-do-you-read-from-stdin/1450398#1450398 13 | # sys.stdin is a file-like object on which you can call functions read or readlines if you want to read everything or 14 | # you want to read everything and split it by newline automatically. (You need to import sys for this to work.) 15 | -------------------------------------------------------------------------------- /basic/range_sp/range_py2.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def print_range(r): 5 | print(list(r)) 6 | 7 | 8 | def main(): 9 | print(range(0)) 10 | print_range(range(1)) 11 | print_range(range(0, 1)) 12 | print_range(range(0, 1, 1)) 13 | print_range(range(10, 15, 4)) 14 | print_range(range(-2)) 15 | print_range(range(0, -2, -1)) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | 21 | 22 | # https://docs.python.org/2/library/functions.html#range 23 | # https://docs.python.org/2/library/functions.html#xrange 24 | -------------------------------------------------------------------------------- /packages/aiohttp/aiohttp_client.py: -------------------------------------------------------------------------------- 1 | import aiohttp 2 | import asyncio 3 | import async_timeout 4 | 5 | 6 | async def fetch(session, url): 7 | async with async_timeout.timeout(10): 8 | async with session.get(url) as response: 9 | return await response.text() 10 | 11 | 12 | async def main(): 13 | async with aiohttp.ClientSession() as session: 14 | html = await fetch(session, 'http://httpbin.org/delay/5.1') 15 | print(html) 16 | 17 | 18 | loop = asyncio.get_event_loop() 19 | loop.run_until_complete(main()) 20 | -------------------------------------------------------------------------------- /packages/pydantic_sp/field_alias_config.py: -------------------------------------------------------------------------------- 1 | from pydantic import BaseModel 2 | 3 | 4 | class Foo(BaseModel): 5 | bar: str 6 | baz: str 7 | 8 | class Config: 9 | fields = { 10 | 'bar': { 11 | 'alias': 'Bar', 12 | }, 13 | } 14 | 15 | 16 | def main(): 17 | foo_data = { 18 | "Bar": "barrrrr", 19 | "baz": "bazzzzz", 20 | } 21 | foo = Foo.parse_obj(foo_data) 22 | print(foo) 23 | print(foo.dict()) 24 | 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /packages/pydantic_sp/model_init.py: -------------------------------------------------------------------------------- 1 | from pydantic import BaseModel 2 | 3 | 4 | class Foo(BaseModel): 5 | bar: int = 0 6 | baz: str = '' 7 | 8 | 9 | def main(): 10 | # use default 11 | foo = Foo() 12 | print(foo) 13 | # set values 14 | foo.bar = 3 15 | foo.baz = 'x' 16 | print(foo) 17 | # init with kwargs 18 | foo = Foo(bar=1, baz='2') 19 | print(foo) 20 | # init with a dict 21 | foo = Foo.parse_obj({"bar": 1, "baz": '2'}) 22 | print(foo) 23 | 24 | 25 | if __name__ == '__main__': 26 | main() 27 | -------------------------------------------------------------------------------- /basic/bytes_sp/bytes_int.py: -------------------------------------------------------------------------------- 1 | def int_to_bytes(x): 2 | return x.to_bytes((x.bit_length() + 7) // 8, 'big') 3 | 4 | 5 | def int_from_bytes(xbytes): 6 | return int.from_bytes(xbytes, 'big') 7 | 8 | 9 | def main(): 10 | print(bytes([255])) 11 | # print(bytes([1024])) # ValueError: bytes must be in range(0, 256) 12 | 13 | b = int_to_bytes(1024) 14 | print(b) 15 | i = int_from_bytes(b) 16 | print(i) 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | 22 | 23 | 24 | # https://stackoverflow.com/a/30375198/3936457 25 | -------------------------------------------------------------------------------- /basic/str_sp/str_unicode.py: -------------------------------------------------------------------------------- 1 | def to_utf8(s): 2 | if isinstance(s, str): 3 | return s.encode('utf-8') 4 | return s 5 | 6 | 7 | def to_unicode(s): 8 | if isinstance(s, bytes): 9 | return s.decode('utf-8') 10 | return s 11 | 12 | 13 | def main(): 14 | print(to_utf8('哈哈哈'), to_unicode(b'\xe5\x93\x88\xe5\x93\x88\xe5\x93\x88')) 15 | 16 | # print('哈哈哈'.encode('ascii')) # UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-2: ordinal not in range(128) 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | -------------------------------------------------------------------------------- /builtin_packages/base64_sp/urlsafe_encode_decode.py: -------------------------------------------------------------------------------- 1 | import base64 2 | 3 | 4 | # urlsafe_b64encode doc: The alphabet uses '-' instead of '+' and '_' instead of '/'. 5 | 6 | 7 | def urlsafe_encode_and_decode(s): 8 | print('=== urlsafe_encode_and_decode ===') 9 | print(s) 10 | s_encoded = base64.urlsafe_b64encode(s.encode('utf-8')) 11 | print(s_encoded) 12 | print(base64.urlsafe_b64decode(s_encoded).decode('utf-8')) 13 | 14 | 15 | def main(): 16 | urlsafe_encode_and_decode('hello') 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | -------------------------------------------------------------------------------- /utils/003-upload-temp-file-with-string-io/app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import requests 3 | from StringIO import StringIO 4 | 5 | 6 | def main(): 7 | text = 'hello world!' 8 | temp = StringIO() 9 | temp.write(text) 10 | temp.seek(0) 11 | temp.name = 'hello.txt' 12 | files = { 13 | 'file_x': temp 14 | } 15 | ret = requests.post('https://httpbin.org/post', files=files) 16 | print ret.text 17 | temp.close() 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | 23 | # https://segmentfault.com/a/1190000005999222 24 | -------------------------------------------------------------------------------- /packages/package_snippets/print_package.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | import foo 6 | print('__name__: {}'.format(__name__)) 7 | print('foo: {}'.format(foo)) 8 | print('foo.print_foo: {}'.format(foo.print_foo)) 9 | # print('foo.foo_a: {}'.format(foo.foo_a)) # AttributeError: 'module' object has no attribute 'foo_a' 10 | 11 | 12 | def main2(): 13 | import foo.foo_a 14 | print('foo: {}'.format(foo)) 15 | print('foo.foo_a: {}'.format(foo.foo_a)) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | main2() 21 | -------------------------------------------------------------------------------- /packages/pendulum_sp/timezone.py: -------------------------------------------------------------------------------- 1 | import pendulum 2 | 3 | 4 | def main(): 5 | now = pendulum.now() 6 | print(now.tz, now.timezone, now.timezone_name, now.tzinfo) 7 | print(now) 8 | 9 | tz_shanghai = pendulum.timezone('Asia/Shanghai') 10 | print(now.in_tz(tz_shanghai)) 11 | 12 | tz_utc = pendulum.timezone('UTC') 13 | print(now.in_tz(tz_utc)) 14 | 15 | dts = "2018-04-13T10:13:37.225416+00:00" 16 | dt = pendulum.parse(dts) 17 | dt = dt.in_tz(tz_shanghai) 18 | print(dt) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /packages/typing_snippets/union_sp.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from typing import Union, Optional 3 | 4 | 5 | def foo(x: Union[str, int]) -> None: 6 | print(x) 7 | 8 | 9 | def foo2(x: int) -> Union[str, None]: 10 | if x < 0: 11 | return 12 | return str(x) 13 | 14 | 15 | def foo3(x: int) -> Optional[str]: 16 | return foo2(x) 17 | 18 | 19 | def main(): 20 | foo(1) 21 | foo('a') 22 | # foo([1, 2]) 23 | 24 | foo2(10) 25 | foo2(-10) 26 | foo3(10) 27 | foo3(-10) 28 | 29 | 30 | if __name__ == '__main__': 31 | main() 32 | -------------------------------------------------------------------------------- /packages/jieba_sp/jieba_sp.py: -------------------------------------------------------------------------------- 1 | import jieba 2 | 3 | 4 | def main(): 5 | seg_list = jieba.cut("我来到北京清华大学", cut_all=True) 6 | print("Full Mode: " + "，".join(seg_list)) # 全模式 7 | 8 | seg_list = jieba.cut("我来到北京清华大学", cut_all=False) 9 | print("Default Mode: " + "，".join(seg_list)) # 精确模式 10 | 11 | seg_list = jieba.cut("他来到了网易杭研大厦") # 默认是精确模式 12 | print(", ".join(seg_list)) 13 | 14 | seg_list = jieba.cut_for_search("小明硕士毕业于中国科学院计算所，后在日本京都大学深造") # 搜索引擎模式 15 | print(", ".join(seg_list)) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /packages/peewee_sp/index_sp.py: -------------------------------------------------------------------------------- 1 | from peewee import * 2 | from packages.peewee_sp.mysql_db import db 3 | 4 | 5 | class BaseModel(Model): 6 | class Meta: 7 | database = db 8 | 9 | 10 | class BigIndex(BaseModel): 11 | my_integer = IntegerField(index=True) 12 | my_char = CharField(unique=True) 13 | 14 | class Meta: 15 | indexes = ( 16 | (('my_integer', 'my_char', ), False), 17 | ) 18 | 19 | 20 | def main(): 21 | db.connect() 22 | db.create_tables([BigIndex]) 23 | 24 | 25 | if __name__ == '__main__': 26 | main() 27 | -------------------------------------------------------------------------------- /packages/stdout_snippets/get_shell_width_height.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | 5 | def get_shell_width_height(): 6 | print('=== get_shell_width_height ===') 7 | print os.popen('stty size', 'r').read().split() 8 | rows, columns = os.popen('stty size', 'r').read().split() 9 | print('width: {}, height: {}'.format(columns, rows)) 10 | 11 | 12 | def main(): 13 | get_shell_width_height() 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | 19 | # https://stackoverflow.com/questions/566746/how-to-get-linux-console-window-width-in-python 20 | -------------------------------------------------------------------------------- /builtin_packages/re_sp/hello_re.py: -------------------------------------------------------------------------------- 1 | import re 2 | 3 | 4 | def search_hello(s): 5 | m = re.search('hello', s) 6 | if m: 7 | print(m.group()) 8 | else: 9 | print('not found') 10 | 11 | 12 | def search_hello2(s): 13 | prog = re.compile('hello') 14 | m = prog.search(s) 15 | if m: 16 | print(m.group()) 17 | else: 18 | print('not found') 19 | 20 | 21 | def main(): 22 | search_hello('hello world') 23 | search_hello('hi world') 24 | search_hello2('hello world') 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /packages/log_snippets/log_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import logging 3 | 4 | 5 | def hello_func(): 6 | logging.info('hello %s', 'world') 7 | 8 | 9 | def main(): 10 | # config logging 11 | logging.basicConfig( 12 | filename='hello.log', # to `pwd` 13 | level=logging.INFO, 14 | format='%(asctime)s %(name)s %(levelname)s %(module)s %(funcName)s: %(message)s', 15 | datefmt='%Y-%m-%d %H:%M:%S' 16 | ) 17 | # log it 18 | logging.info('in the main') 19 | hello_func() 20 | 21 | 22 | if __name__ == '__main__': 23 | main() 24 | -------------------------------------------------------------------------------- /packages/log_snippets/log_to_stdout.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import logging 3 | import sys 4 | 5 | 6 | def hello_func(): 7 | logging.info('hello %s', 'world') 8 | 9 | 10 | def main(): 11 | # config logging 12 | logging.basicConfig( 13 | stream=sys.stdout, 14 | level=logging.INFO, 15 | format='%(asctime)s %(name)s %(levelname)s %(module)s %(funcName)s: %(message)s', 16 | datefmt='%Y-%m-%d %H:%M:%S' 17 | ) 18 | # log it 19 | logging.info('in the main') 20 | hello_func() 21 | 22 | if __name__ == '__main__': 23 | main() 24 | -------------------------------------------------------------------------------- /packages/marshmallow_sp/nest_field.py: -------------------------------------------------------------------------------- 1 | from marshmallow import Schema, fields 2 | 3 | 4 | class ButtonSchema(Schema): 5 | name = fields.Str() 6 | 7 | 8 | class MenuSchema(Schema): 9 | buttons = fields.Nested(ButtonSchema(many=True)) 10 | 11 | 12 | def main(): 13 | result = MenuSchema().load({ 14 | 'buttons': [ 15 | { 16 | 'name': 'foo' 17 | }, 18 | { 19 | 'name': 'bar' 20 | } 21 | ] 22 | }) 23 | print(result) 24 | 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /builtin_packages/base64_sp/base64_encode.py: -------------------------------------------------------------------------------- 1 | import base64 2 | 3 | 4 | def int_to_bytes(x): 5 | return x.to_bytes((x.bit_length() + 7) // 8, 'big') 6 | 7 | 8 | def print_b64encode(bs): 9 | print(base64.b64encode(bs)) 10 | 11 | 12 | def main(): 13 | print_b64encode(b'\xff\xff\xff') 14 | print_b64encode('a'.encode('utf-8')) 15 | print_b64encode('aa'.encode('utf-8')) 16 | print_b64encode('aaa'.encode('utf-8')) 17 | print_b64encode('aaaa'.encode('utf-8')) 18 | print_b64encode(int_to_bytes(105697106)) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /packages/filesystem/join_path.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | 5 | def get_file_dir_path(): 6 | return os.path.dirname(os.path.realpath(__file__)) 7 | 8 | 9 | def join_path(path_a, path_b): 10 | return os.path.join(path_a, path_b) 11 | 12 | 13 | def main(): 14 | path_a = get_file_dir_path() 15 | path_b = "../common_text/foo.txt" 16 | path_ab = join_path(path_a, path_b) 17 | print('"{}" + "{}" = "{}"'.format(path_a, path_b, path_ab)) 18 | with open(path_ab) as f: 19 | print(f.read()) 20 | 21 | 22 | if __name__ == '__main__': 23 | main() 24 | -------------------------------------------------------------------------------- /packages/schematics_snippets/schematics_list_type.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from schematics.models import Model 3 | from schematics.types import ListType, StringType, ModelType 4 | 5 | 6 | # list of string 7 | # list of model 8 | 9 | 10 | class A(Model): 11 | s = StringType() 12 | 13 | 14 | class B(Model): 15 | sl = ListType(StringType) 16 | ml = ListType(ModelType(A)) 17 | 18 | 19 | def main(): 20 | b = B() 21 | b.sl = ["ee", "ff"] 22 | b.ml = [A({"s": "ss"}), A({"s": "sss"})] 23 | print(b.serialize()) 24 | 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /basic/class_sp/inner_meta_class.py: -------------------------------------------------------------------------------- 1 | class Base: 2 | class Meta: 3 | foo = 'f' 4 | bar = 'b' 5 | 6 | 7 | class Fancy(Base): 8 | class Meta: 9 | bar = 'ar' 10 | baz = 'baz' 11 | 12 | 13 | def main(): 14 | print(Base.Meta.foo, Base.Meta.bar) 15 | # print(Fancy.Meta.foo, Fancy.Meta.bar, Fancy.Meta.baz) # AttributeError: type object 'Meta' has no attribute 'foo' 16 | print(Fancy.Meta.bar, Fancy.Meta.baz) 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | 22 | # https://stackoverflow.com/questions/10344197/how-does-djangos-meta-class-work 23 | -------------------------------------------------------------------------------- /basic/i__str____repr__.py: -------------------------------------------------------------------------------- 1 | class Foo(object): 2 | 3 | def __init__(self, id, name): 4 | self.id = id 5 | self.name = name 6 | 7 | def __repr__(self): 8 | print("=== __repr__ ===") 9 | return f'Foo(id={self.id}, name={self.name})' 10 | 11 | def __str__(self): 12 | print("=== __str__ ===") 13 | return f'Foo(id={self.id}, name={self.name})' 14 | 15 | 16 | def main(): 17 | foo = Foo(1, 'fooo') 18 | print(foo) 19 | print(str(foo)) 20 | print([foo]) 21 | print(str([foo])) 22 | 23 | 24 | if __name__ == '__main__': 25 | main() 26 | -------------------------------------------------------------------------------- /packages/config_snippets/config/__init__.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | __all__ = ['CSConfig'] 5 | 6 | app_config_file_name = os.environ.get('CS_CONFIG', '') 7 | if not app_config_file_name: 8 | raise Exception('No CS_CONFIG in os environ, should be something like: xxx_config') 9 | app_config_module = __import__('config.{}'.format(app_config_file_name), fromlist=['Config']) 10 | 11 | CSConfig = app_config_module.Config 12 | 13 | # should set env: export CS_CONFIG=xxx_config 14 | # in gitignore: 15 | # #/models/config_snippets/config/*_config.py 16 | # !/models/config_snippets/config/sample_config.py 17 | -------------------------------------------------------------------------------- /packages/typing_snippets/type_hint_sp.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from typing import List 3 | 4 | 5 | def greeting(name: str) -> str: 6 | if not name: 7 | return 123 # PyCharm 会有提示，但是运行不会有异常 8 | return 'Hello ' + name 9 | 10 | 11 | def greeting_many(names: List[str]) -> List[str]: 12 | return [greeting(name) for name in names] 13 | 14 | 15 | def main(): 16 | print(greeting("clip")) 17 | # print(greeting(123)) # TypeError: must be str, not int 18 | print(greeting("")) 19 | print(greeting_many(['clip', 'cliip', 'cliiip'])) 20 | 21 | 22 | if __name__ == '__main__': 23 | main() 24 | -------------------------------------------------------------------------------- /packages/pydantic_sp/hello_pydantic.py: -------------------------------------------------------------------------------- 1 | from datetime import datetime 2 | from typing import List 3 | from pydantic import BaseModel 4 | 5 | 6 | class User(BaseModel): 7 | id: int 8 | name = 'John Doe' 9 | signup_ts: datetime = None 10 | friends: List[int] = [] 11 | 12 | 13 | def main(): 14 | external_data = {'id': '123', 'signup_ts': '2017-06-01 12:22', 'friends': [1, '2', b'3']} 15 | user = User(**external_data) 16 | print(user) 17 | print(user.id) 18 | # print(user.get('id')) # AttributeError: 'User' object has no attribute 'get' 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /packages/filesystem/rm_file.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | 5 | def main(): 6 | file_path = 'temp.txt' 7 | print('file <{}> exists: {}'.format(file_path, os.path.exists(file_path))) 8 | try: 9 | os.remove(file_path) 10 | except OSError as e: 11 | print(e) 12 | 13 | 14 | if __name__ == '__main__': 15 | main() 16 | 17 | # ref Python Delete/Remove a File If Exists On Disk – nixCraft https://www.cyberciti.biz/faq/python-delete-remove-file-if-exists-on-disk/ 18 | # python - How to delete a file or folder? - Stack Overflow https://stackoverflow.com/questions/6996603/how-to-delete-a-file-or-folder -------------------------------------------------------------------------------- /sdks/qiniu/app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import qiniu 3 | from config import QiniuConfig 4 | from qiniu_client import QiniuClient 5 | 6 | 7 | def main(): 8 | qiniu_client = QiniuClient(QiniuConfig.ACCESS_KEY, QiniuConfig.SECRET_KEY, 9 | QiniuConfig.BUCKET, QiniuConfig.HOST, QiniuConfig.PREFIX) 10 | file_name = '../../models/_common_img/google.jpg.png' 11 | with open(file_name) as f: 12 | url = qiniu_client.upload_img(f.read()) 13 | print(url) 14 | url2 = qiniu_client.upload_img_file(file_name) 15 | print(url2) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /packages/pydantic_sp/readme.md: -------------------------------------------------------------------------------- 1 | ## samples 2 | 3 | - [init model](model_init.py) 4 | - [validation error](validation_error.py) 5 | - [use Unit to implement poly field](poly_field_with_union.py) 6 | - [recursive models](recursive_models.py) 7 | - [PEP 484 types](pep_484_types.py) 8 | - [serialization](serialization.py) 9 | - [field alias config](field_alias_config.py) 10 | - exotic types 11 | - helper functions 12 | - model config 13 | - settings 14 | - dynamic model creation 15 | - usage with mypy 16 | - Faux Immutability 17 | - Copy and Values 18 | - Abstract Base Classes 19 | 20 | 21 | ## refs 22 | 23 | - https://pydantic-docs.helpmanual.io/ 24 | -------------------------------------------------------------------------------- /packages/asyncio_sp/hello_asyncio.py: -------------------------------------------------------------------------------- 1 | import threading 2 | import asyncio 3 | 4 | 5 | @asyncio.coroutine 6 | def hello(): 7 | print(f'Hello World! ({threading.current_thread()})') 8 | # 异步调用 asyncio.sleep(1): 9 | yield from asyncio.sleep(1) 10 | print(f'Hello again! ({threading.current_thread()})') 11 | 12 | 13 | def main(): 14 | # 获取 EventLoop 15 | loop = asyncio.get_event_loop() 16 | # 执行 coroutine 17 | loop.run_until_complete(hello()) 18 | 19 | tasks = [hello(), hello(), hello()] 20 | loop.run_until_complete(asyncio.wait(tasks)) 21 | loop.close() 22 | 23 | 24 | if __name__ == '__main__': 25 | main() 26 | -------------------------------------------------------------------------------- /packages/schematics_snippets/schematics_dict_type.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from schematics.models import Model 3 | from schematics.types import DictType, StringType, ModelType 4 | 5 | 6 | # dict of string 7 | # dict of model 8 | 9 | 10 | class A(Model): 11 | s = StringType() 12 | 13 | 14 | class B(Model): 15 | sd = DictType(StringType) 16 | md = DictType(ModelType(A)) 17 | 18 | 19 | def main(): 20 | b = B() 21 | b.sd = { 22 | "e": "ee", 23 | "f": "ff" 24 | } 25 | b.md = { 26 | "g": A({"s": "ss"}) 27 | } 28 | print(b.serialize()) 29 | 30 | 31 | if __name__ == '__main__': 32 | main() 33 | -------------------------------------------------------------------------------- /prjs/001-covert-img-to-rgb/app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from PIL import Image, ImageCms 3 | 4 | 5 | def covert_a(): 6 | img = Image.open('./img/in.jpg') 7 | img = img.convert('RGB') 8 | img.save('./img/out_a.jpg') 9 | 10 | 11 | def covert_b(): 12 | img = Image.open("./img/in.jpg") 13 | img = ImageCms.profileToProfile(img, './icc/JapanColor2001Coated.icc', './icc/sRGB Color Space Profile.icm', 14 | renderingIntent=0, outputMode='RGB') 15 | img.save('./img/out_b.jpg', quality=100) 16 | 17 | 18 | def main(): 19 | covert_a() 20 | covert_b() 21 | 22 | 23 | if __name__ == '__main__': 24 | main() 25 | -------------------------------------------------------------------------------- /basic/str_sp/str_escape.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def main(): 5 | u = u'2017年' 6 | print(u) 7 | print(u.encode('unicode-escape')) 8 | print(repr(u.encode('unicode-escape'))) 9 | print(u.encode('unicode-escape').encode('string-escape')) 10 | print(repr(u.encode('unicode-escape').encode('string-escape'))) 11 | print(u.encode('unicode-escape').encode('string-escape').encode('string-escape')) 12 | print(repr(u.encode('unicode-escape').encode('string-escape').encode('string-escape'))) 13 | print(u.encode('unicode-escape').encode('unicode-escape').encode('unicode-escape')) 14 | 15 | 16 | if __name__ == '__main__': 17 | main() 18 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/flask_request/app.py: -------------------------------------------------------------------------------- 1 | from flask import Flask, request, jsonify 2 | app = Flask(__name__) 3 | 4 | 5 | 6 | @app.route("/") 7 | def get(): 8 | return "Hello World!" 9 | 10 | 11 | 12 | @app.route("/get", methods=['GET']) 13 | def app_get(): 14 | print(request.headers) 15 | return jsonify({ 16 | "args": request.args, 17 | }) 18 | 19 | 20 | @app.route("/post", methods=['POST']) 21 | def app_post(): 22 | return jsonify({ 23 | "json": request.json, 24 | "form": request.form, 25 | }) 26 | 27 | 28 | def main(): 29 | app.run(debug=True) 30 | 31 | 32 | if __name__ == '__main__': 33 | main() 34 | -------------------------------------------------------------------------------- /packages/peewee_sp/databases.py: -------------------------------------------------------------------------------- 1 | from mysql_conn import MYSQL_DB_NAME, conn 2 | 3 | 4 | def create_database(): 5 | conn.cursor().execute( 6 | f'CREATE DATABASE IF NOT EXISTS {MYSQL_DB_NAME} ' 7 | 'DEFAULT CHARACTER SET utf8mb4 ' 8 | 'DEFAULT COLLATE utf8mb4_unicode_ci;', 9 | ) 10 | print('=== create database done ===') 11 | 12 | 13 | def drop_database(): 14 | conn.cursor().execute(f'DROP DATABASE IF EXISTS {MYSQL_DB_NAME};') 15 | print('=== drop database done ===') 16 | 17 | 18 | def main(): 19 | create_database() 20 | drop_database() 21 | conn.close() 22 | 23 | 24 | if __name__ == '__main__': 25 | main() 26 | -------------------------------------------------------------------------------- /packages/pendulum_sp/with_datetime.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | import pendulum 3 | 4 | 5 | def main(): 6 | dt = datetime.datetime(2016, 8, 20, 1, 2, 3) 7 | dt = pendulum.instance(dt) 8 | print(dt) 9 | 10 | dt = datetime.datetime(2016, 8, 20, 1, 2, 3) 11 | dt = pendulum.instance(dt, 'Asia/Shanghai') 12 | print(dt) 13 | 14 | dt = datetime.datetime( 15 | year=dt.year, 16 | month=dt.month, 17 | day=dt.day, 18 | hour=dt.hour, 19 | minute=dt.minute, 20 | second=dt.second, 21 | microsecond=dt.microsecond, 22 | ) 23 | print(dt) 24 | 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /packages/pydantic_sp/custom_data_type.py: -------------------------------------------------------------------------------- 1 | from pydantic import BaseModel 2 | 3 | 4 | class MyData: 5 | 6 | def __init__(self, s): 7 | self.s = s 8 | 9 | 10 | def __str__(self): 11 | return f'' 12 | 13 | @classmethod 14 | def get_validators(cls): 15 | yield cls.myvalidator 16 | 17 | @classmethod 18 | def myvalidator(cls, v): 19 | return cls(v) 20 | 21 | 22 | class MyModel(BaseModel): 23 | md: MyData 24 | 25 | 26 | def main(): 27 | model = MyModel.parse_obj({ 28 | "md": "hello" 29 | }) 30 | print(model.md) 31 | 32 | 33 | if __name__ == '__main__': 34 | main() 35 | -------------------------------------------------------------------------------- /builtin_packages/collections_snippets/use_ordered_dict_remove_duplicate.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from collections import OrderedDict 3 | 4 | 5 | def remove_duplicate1(): 6 | print("=== remove_duplicate1 ===") 7 | ids = [1, 3, 4, 1, 2, 3] 8 | print(list(OrderedDict.fromkeys(ids))) 9 | 10 | 11 | def remove_duplicate2(): 12 | print("=== remove_duplicate2 ===") 13 | 14 | od = OrderedDict([(1, 'a'), (2, 'b'), (1, 'a')]) 15 | print([v for _, v in od.items()]) 16 | # return list(OrderedDict.fromkeys(items)) 17 | 18 | 19 | def main(): 20 | remove_duplicate1() 21 | remove_duplicate2() 22 | 23 | 24 | if __name__ == '__main__': 25 | main() 26 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # code-snippets-python 2 | 3 | ## 为什么要收集这些代码 4 | 5 | 下次用起来方便。 6 | 7 | ## 环境配置 8 | 9 | ### 安装 pipenv 10 | 11 | ```shell 12 | $ pip install pipenv 13 | # or 14 | $ brew install pipenv 15 | ``` 16 | 17 | ### 配置（可选） 18 | 19 | ```shell 20 | # 自动补全 21 | $ eval "$(pipenv --completion)" 22 | 23 | # macOS 可能要在 profile 里导出 local 变量 24 | $ export LC_ALL=en_US.UTF-8 25 | $ export LANG=en_US.UTF-8 26 | ``` 27 | 28 | ### 创建和启动虚拟环境 29 | 30 | ```shell 31 | $ git clone git@github.com:binderclip/code-snippets-python.git 32 | $ cd code-snippets-python 33 | $ pipenv install 34 | $ pipenv shell 35 | ``` 36 | 37 | ### 之后更新虚拟环境 38 | 39 | ```shell 40 | $ pipenv install xxx 41 | ``` 42 | -------------------------------------------------------------------------------- /prjs/023-socket-http-client/post.py: -------------------------------------------------------------------------------- 1 | import socket 2 | 3 | 4 | def main(): 5 | s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 6 | 7 | s.connect(("httpbin.org", 80)) 8 | print("== after connect") 9 | s.sendall(b'POST /post HTTP/1.1\r\nHost: httpbin.org\r\n\r\n{"foo": "bar"}') 10 | # b'HTTP/1.1 503 Service Unavailable.\r\nContent-length:0\r\n\r\n' 11 | # 如果不设置 Content-length 的话似乎 post 就不能携带内容了，server 可能会认为没有 body，但是又来了 body 就会出错 12 | print("== after sendall") 13 | s.shutdown(1) 14 | print("== after shutdown") 15 | data = s.recv(4096) 16 | print(data) 17 | s.close() 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /packages/pyjwt_sp/pyjwt_sp.py: -------------------------------------------------------------------------------- 1 | import jwt 2 | from jwt import DecodeError 3 | 4 | 5 | def main(): 6 | encoded_jwt = jwt.encode({'some': 'word'}, 'secret', algorithm='HS256') 7 | print(encoded_jwt) 8 | 9 | decoded_jwt = jwt.decode(encoded_jwt, 'secret', algorithms=['HS256']) 10 | print(decoded_jwt) 11 | 12 | decoded_jwt_not_verify = jwt.decode(encoded_jwt, verify=False) 13 | print(decoded_jwt_not_verify) 14 | 15 | try: 16 | decoded_jwt = jwt.decode('xxxxxxxxxx', 'secret', algorithms=['HS256']) 17 | print(decoded_jwt) 18 | except DecodeError as e: 19 | print(type(e), e) 20 | 21 | 22 | if __name__ == '__main__': 23 | main() 24 | -------------------------------------------------------------------------------- /builtin_packages/re_sp/group_search.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import re 3 | 4 | 5 | def group_search(): 6 | print('===== group_search =====') 7 | s = '"Foo" and "bar" are on the way.' 8 | m = re.search(r'"(.*)" and "(.*)" are on the way\.', s) 9 | if m: 10 | print('{} ||| {} {}'.format(m.group(0), m.group(1), m.group(2))) 11 | else: 12 | print('not found') 13 | s = '"张三"和"李四"在路上。' 14 | m = re.search(r'"(.*)"和"(.*)"在路上。', s) 15 | if m: 16 | print('{} {}'.format(m.group(1), m.group(2))) 17 | else: 18 | print('not found') 19 | 20 | 21 | def main(): 22 | group_search() 23 | 24 | if __name__ == '__main__': 25 | main() 26 | -------------------------------------------------------------------------------- /packages/marshmallow_sp/marshmallow_demo.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | from marshmallow import Schema, fields 3 | 4 | 5 | class ArtistSchema(Schema): 6 | name = fields.Str() 7 | 8 | 9 | class AlbumSchema(Schema): 10 | title = fields.Str() 11 | release_date = fields.Date() 12 | artist = fields.Nested(ArtistSchema()) 13 | 14 | 15 | def main(): 16 | bowie = dict(name='David Bowie') 17 | album = dict(artist=bowie, title='Hunky Dory', release_date=datetime.date(1971, 12, 17)) 18 | 19 | schema = AlbumSchema() 20 | result = schema.dump(album) 21 | print(result) 22 | # pprint(result.data, indent=2) 23 | 24 | 25 | if __name__ == '__main__': 26 | main() 27 | -------------------------------------------------------------------------------- /packages/pydantic_sp/setting_sp.py: -------------------------------------------------------------------------------- 1 | from pydantic import BaseSettings 2 | 3 | 4 | class Settings(BaseSettings): 5 | redis_host = 'localhost' # set os env APP_REDIS_HOST to overwrite 6 | redis_port = 6379 7 | redis_database = 0 8 | debug = False # 'true' and '1' are True, 'false' and '0' are False 9 | 10 | class Config: 11 | env_prefix = 'APP_' 12 | 13 | 14 | def main(): 15 | settings = Settings() 16 | print(settings.redis_host) 17 | print(settings.redis_port, type(settings.redis_port)) 18 | print(settings.debug) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | 24 | 25 | # https://pydantic-docs.helpmanual.io/#settings 26 | -------------------------------------------------------------------------------- /packages/requests_sp/resp.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def main(): 5 | r = requests.get('https://httpbin.org/get') 6 | print(r.content) # """Content of the response, in bytes.""" 7 | print(r.text) # """Content of the response, in unicode....""" 8 | print(r.json()) # """Returns the json-encoded content of a response, if any.... 9 | # raises ValueError: If the response body does not contain valid json.""" 10 | 11 | r = requests.get('https://httpbin.org/') 12 | try: 13 | print(r.json()) 14 | except ValueError as e: 15 | print(type(e)) 16 | print(e) 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /builtin_packages/enum_sp/hello_enum.py: -------------------------------------------------------------------------------- 1 | from enum import Enum, IntEnum 2 | 3 | 4 | class Color(Enum): 5 | RED = 1 6 | GREEN = 2 7 | BLUE = 3 8 | 9 | 10 | class Color2(IntEnum): 11 | RED = 1 12 | GREEN = 2 13 | BLUE = 3 14 | 15 | 16 | def main(): 17 | c_r = Color.RED 18 | print(c_r) 19 | print(c_r.name) 20 | print(c_r.value) 21 | # print(int(c_r)) # TypeError: int() argument must be a string, a bytes-like object or a number, not 'Color' 22 | 23 | c_r = Color2.RED 24 | print(c_r) 25 | print(c_r.name) 26 | print(c_r.value) 27 | print(int(c_r)) 28 | print(c_r.__dict__) 29 | 30 | 31 | if __name__ == '__main__': 32 | main() 33 | -------------------------------------------------------------------------------- /builtin_packages/collections_snippets/hello_namedtuple.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from collections import namedtuple 3 | User = namedtuple('User', ['name', 'sex', 'age']) 4 | 5 | 6 | def main(): 7 | u1 = User(name='foo', sex='male', age=21) 8 | u2 = User._make(['bar', 'female', 22]) 9 | print(u1) 10 | print(u1.name, u1.sex, u1.age) 11 | for t in u1: 12 | print(t) 13 | print(u2) 14 | u1._replace(age=22) 15 | print(u1) 16 | print(u1._asdict()) 17 | u3 = User(**{ 18 | 'name': 'baz', 19 | 'sex': 'male', 20 | 'age': 23, 21 | }) 22 | print(u3) 23 | print(dict(u3._asdict())) 24 | 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /packages/socket_sp/socket_server_sp.py: -------------------------------------------------------------------------------- 1 | import socket 2 | 3 | 4 | def main(): 5 | HOST = '127.0.0.1' # 标准的回环地址 (localhost) 6 | PORT = 65432 # 监听的端口 (非系统级的端口: 大于 1023) 7 | 8 | with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: 9 | s.bind((HOST, PORT)) 10 | s.listen() 11 | conn, addr = s.accept() 12 | with conn: 13 | # 用了 context manager 之后不用再手动关闭 14 | print('Connected by', addr) 15 | while True: 16 | data = conn.recv(1024) 17 | if not data: 18 | break # 返回空对象时结束 19 | conn.sendall(data) 20 | 21 | 22 | if __name__ == '__main__': 23 | main() 24 | -------------------------------------------------------------------------------- /packages/typing_snippets/type_var_sp.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from typing import TypeVar, Sequence 3 | 4 | 5 | T = TypeVar('T') 6 | A = TypeVar('A', str, bytes) 7 | 8 | 9 | def repeat(x: T, n: int) -> Sequence[T]: 10 | """Return a list containing n references to x.""" 11 | return [x]*n 12 | 13 | 14 | def longest(x: A, y: A) -> A: 15 | """Return the longest of two strings.""" 16 | print(len(x), len(y)) 17 | return x if len(x) >= len(y) else y 18 | 19 | 20 | def main(): 21 | print(repeat('ha', 20)) 22 | print(longest('big watermelon', '大西瓜🍉')) 23 | print(longest('big watermelon'.encode('utf-8'), '大西瓜🍉'.encode('utf-8'))) 24 | 25 | if __name__ == '__main__': 26 | main() 27 | -------------------------------------------------------------------------------- /basic/class_sp/enum_class_demo.py: -------------------------------------------------------------------------------- 1 | class MyType(object): 2 | '''我的类别 3 | x: x 类型 4 | y: y 类型 5 | ''' 6 | x = 1 7 | y = 2 8 | 9 | type_text_map = { 10 | x: "x_type", 11 | y: "y_type" 12 | } 13 | 14 | text_type_map = { 15 | "x_type": x, 16 | "y_type": y 17 | } 18 | 19 | @classmethod 20 | def get_text(cls, type_): 21 | return cls.type_text_map[type_] 22 | 23 | @classmethod 24 | def get_type(cls, text): 25 | return cls.text_type_map[text] 26 | 27 | 28 | def main(): 29 | x = 'x_type' 30 | print(MyType.get_type(x)) 31 | print(MyType.get_text(MyType.x)) 32 | 33 | 34 | if __name__ == '__main__': 35 | main() 36 | -------------------------------------------------------------------------------- /packages/requests_sp/download_and_upload_img.py: -------------------------------------------------------------------------------- 1 | import shutil 2 | import requests 3 | import io 4 | 5 | 6 | def main(): 7 | url_down = 'https://qn.cdn.cliiip.com/imgs/u/4c3f70fd-f1c4-4232-a6ff-9228ce164fc5.png' 8 | url_up = 'https://httpbin.org/post' 9 | 10 | r = requests.get(url_down, stream=True) 11 | if r.status_code == 200: 12 | with io.BytesIO() as f: 13 | r.raw.decode_content = True # decode based on content-encoding 14 | print(type(r.raw)) 15 | shutil.copyfileobj(r.raw, f) 16 | f.seek(0) 17 | r = requests.post(url_up, files=[('image', f)]) 18 | print(r.json()) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /packages/threading_snippets/thread_and_queue.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from Queue import Queue 3 | from threading import Thread 4 | 5 | worker_size = 10 6 | queue_size = 10 7 | 8 | q = Queue(maxsize=queue_size) 9 | 10 | 11 | def worker(): 12 | while True: 13 | item = q.get() 14 | print(item) 15 | q.task_done() 16 | 17 | 18 | def main(): 19 | 20 | for i in range(worker_size): 21 | t = Thread(target=worker) 22 | t.daemon = True 23 | t.start() 24 | 25 | print('=== start work ===') 26 | for i in xrange(100): 27 | q.put(i) 28 | q.join() # block until all tasks are done 29 | print('=== end ===') 30 | 31 | 32 | if __name__ == '__main__': 33 | main() 34 | -------------------------------------------------------------------------------- /packages/geetest_sp/geetest_sp.py: -------------------------------------------------------------------------------- 1 | from geetest import GeetestLib 2 | 3 | 4 | GEETEST_ID = 'e285deeeeeeeeeeeeeeeeeeeeeeeeeee' 5 | GEETEST_KEY = '16f7317eeeeeeeeeeeeeeeeeeeeeeeee' 6 | 7 | 8 | def get_status_and_response_str(gt, user_id): 9 | return gt.pre_process(user_id), gt.get_response_str() 10 | # {"success": 1, "gt": "e285deeeeeeeeeeeeeeeeeeeeeeeeeee", "challenge": "2cd858e8243972a277a715dd7a45e82a"} 11 | # {"success": 0, "gt": "e285deeeeeeeeeeeeeeeeeeeeeeeeeee", "challenge": "70efdf2ec9b086079795c442636b55fb1f"} 12 | 13 | 14 | def main(): 15 | gt = GeetestLib(GEETEST_ID, GEETEST_KEY) 16 | user_id = 1 17 | get_status_and_response_str(gt, user_id) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | -------------------------------------------------------------------------------- /prjs/022-http-chunked-exp-with-flask/app.py: -------------------------------------------------------------------------------- 1 | import time 2 | from flask import Flask, escape, request, Response 3 | 4 | app = Flask(__name__) 5 | 6 | 7 | @app.route('/') 8 | def hello(): 9 | name = request.args.get("name", "World") 10 | return f'Hello, {escape(name)}!' 11 | 12 | 13 | @app.route('/stream.csv') 14 | def generate_large_csv(): 15 | def generate(): 16 | print("== generate start ==") 17 | for i in range(10000): 18 | yield f'{i}, foo\n' 19 | time.sleep(0.0005) 20 | print("== generate done ==") 21 | return Response(generate(), mimetype='text/csv') 22 | 23 | 24 | def main(): 25 | app.run(port=8889) 26 | 27 | 28 | if __name__ == '__main__': 29 | main() 30 | -------------------------------------------------------------------------------- /utils/012-yes-or-no/app.py: -------------------------------------------------------------------------------- 1 | def yes_or_no(prompt, true_value='y', false_value='n', default=True): 2 | default_value = true_value if default else false_value 3 | prompt = '%s? %s/%s [%s]: ' % (prompt, true_value, false_value, default_value) 4 | i = input(prompt) 5 | if not i: 6 | return default 7 | while True: 8 | if i == true_value: 9 | return True 10 | elif i == false_value: 11 | return False 12 | prompt = 'Please input %s or %s: ' % (true_value, false_value) 13 | i = input(prompt) 14 | # replace input with raw_input for Python 2 15 | 16 | 17 | def main(): 18 | print(yes_or_no('Are you OK')) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /builtin_packages/collections_snippets/hello_defaultdict.py: -------------------------------------------------------------------------------- 1 | from collections import defaultdict 2 | 3 | 4 | def main(): 5 | print(int(), int()) 6 | dd = defaultdict(int) 7 | print(dd['a'], dd['b']) 8 | 9 | print(str(), str()) 10 | dd = defaultdict(str, {'a': 'aa'}) 11 | print(dd['a'], dd['b']) 12 | 13 | print(bool(), bool()) 14 | dd = defaultdict(bool) 15 | print(dd['a'], dd['b']) 16 | 17 | dd = defaultdict(lambda: 3) 18 | print(dd['a'], dd['b']) 19 | 20 | dd = defaultdict(lambda: []) 21 | print(dd['a'], dd['b']) 22 | 23 | dd = defaultdict(lambda: defaultdict(list)) 24 | print(dd['a'], dd['b'], dd['a']['b'], dd['c']['d']) 25 | 26 | 27 | if __name__ == '__main__': 28 | main() 29 | -------------------------------------------------------------------------------- /packages/string_io_snippets/hello_string_io.py: -------------------------------------------------------------------------------- 1 | import io 2 | 3 | 4 | def use_as_file(): 5 | print('=== use_as_file ===') 6 | text = 'hello world!' 7 | f = io.StringIO() 8 | f.write(text) 9 | f.seek(0) 10 | print(f) 11 | # print(f.name) # AttributeError: '_io.StringIO' object has no attribute 'name' 12 | f.name = 'hello.txt' 13 | print(f) 14 | print(f.name) 15 | print(f.read()) 16 | f.close() 17 | 18 | 19 | def use_as_stream(): 20 | print('=== use_as_stream ===') 21 | f = io.StringIO("some initial text data") 22 | print(f.read()) 23 | f.close() 24 | 25 | 26 | def main(): 27 | use_as_file() 28 | use_as_stream() 29 | 30 | 31 | if __name__ == '__main__': 32 | main() 33 | -------------------------------------------------------------------------------- /basic/i__slots__.py: -------------------------------------------------------------------------------- 1 | import sys 2 | 3 | 4 | class Image1(object): 5 | pass 6 | 7 | 8 | class Image2(object): 9 | __slots__ = ['id', 'caption', 'url'] 10 | 11 | 12 | def set_obj(obj): 13 | obj.id = 1 14 | obj.caption = 'capppppppppp' 15 | obj.url = 'uuuuuuuuuuuuuuu' 16 | 17 | 18 | def main(): 19 | img1 = Image1() 20 | img2 = Image2() 21 | 22 | print(sys.getsizeof(img1)) 23 | print(sys.getsizeof(img2)) 24 | 25 | set_obj(img1) 26 | set_obj(img2) 27 | 28 | print(img1.__dict__) 29 | # print(img2.__dict__) AttributeError: 'Image2' object has no attribute '__dict__' 30 | 31 | print(sys.getsizeof(img1)) 32 | print(sys.getsizeof(img2)) 33 | 34 | 35 | if __name__ == '__main__': 36 | main() 37 | -------------------------------------------------------------------------------- /packages/dataclasses_sp/field_sp.py: -------------------------------------------------------------------------------- 1 | from dataclasses import dataclass, fields, field 2 | 3 | 4 | @dataclass 5 | class C(object): 6 | # basic 7 | field_a: str 8 | 9 | 10 | @dataclass 11 | class C1(object): 12 | # with default 13 | field_a: str = field(default='') 14 | 15 | 16 | @dataclass 17 | class C2(object): 18 | field_a: str 19 | field_b: int 20 | 21 | @classmethod 22 | def get_fields(cls): 23 | return fields(cls) 24 | 25 | 26 | class Foo(object): 27 | def __init__(self, foo): 28 | self.foo = foo 29 | 30 | 31 | def main(): 32 | # get all fields 33 | print(fields(C)) 34 | print(C2.get_fields()) 35 | print(C2.__dict__) 36 | 37 | 38 | if __name__ == '__main__': 39 | main() 40 | -------------------------------------------------------------------------------- /prjs/006-make-1-million-requests-with-python-aiohttp/s2_requests.py: -------------------------------------------------------------------------------- 1 | import requests 2 | import time 3 | 4 | 5 | def fetch(i, session): 6 | url = f"http://httpbin.org/anything/{i}" 7 | # url = f"https://www.baidu.com/s?wd={i}" 8 | return session.get(url) 9 | 10 | 11 | def main(): 12 | print('=== start ===') 13 | 14 | t_start = time.time() 15 | 16 | texts = [] 17 | s = requests.Session() 18 | for i in range(30): 19 | texts.append(fetch(i, s).text) 20 | 21 | t_end = time.time() 22 | print('time: {}'.format(t_end - t_start)) 23 | 24 | # for text in texts: 25 | # print(text) 26 | print(f'{len(texts)}') 27 | print('=== done ===') 28 | 29 | 30 | if __name__ == '__main__': 31 | main() 32 | -------------------------------------------------------------------------------- /packages/geetest_sp/readme.md: -------------------------------------------------------------------------------- 1 | # geetest 2 | 3 | ## 验证流程 4 | 5 | - 用 id 和 key 初始化 geetest lib 6 | - 发送 user_id 获得 status（geetest 是否宕机）和 challenge 7 | - status 和 user_id 写入 session，challenge 信息发给客户端 8 | - ... 9 | - 从客户端读取 challenge、validate 和 seccode，从 session 读取 status 和 user_id 10 | - 如果是正常情况用 geetest 的在线测试，geetest 宕机情况则使用普通模式 11 | 12 | ## 实际应用 13 | 14 | ### 做发帖限制 15 | 16 | - 客户端默认的请求不需要验证 17 | - 服务器中记录用户的发帖情况 18 | - 服务器接收请求之后判断是否超过限制，如果超过且没有 geetest 信息则报错 19 | - 客户端接收到错误之后提示验证 20 | - 验证后重新提交请求，验证通过则提交，不通过则返回错误 21 | 22 | ## refs 23 | 24 | - [geetest-start](https://docs.geetest.com/install/overview/start/) 25 | - [geetest-guide](https://docs.geetest.com/install/overview/guide) 26 | - [geetest-flowchart](https://docs.geetest.com/install/overview/flowchart) 27 | -------------------------------------------------------------------------------- /prjs/006-make-1-million-requests-with-python-aiohttp/s3_requests.py: -------------------------------------------------------------------------------- 1 | import requests 2 | import time 3 | 4 | 5 | def fetch(i, session): 6 | # url = f"http://localhost:8080/{i}" 7 | url = f"http://httpbin.org/anything/{i}" 8 | return session.get(url) 9 | 10 | 11 | def main(): 12 | print('=== start ===') 13 | n = 100 14 | t_start = time.time() 15 | 16 | texts = [] 17 | s = requests.Session() 18 | for i in range(n): 19 | texts.append(fetch(i, s).text) 20 | 21 | t_end = time.time() 22 | print('time: {}'.format(t_end - t_start)) 23 | 24 | # for text in texts: 25 | # print(text) 26 | print(f'{len(texts)}') 27 | print('=== done ===') 28 | 29 | 30 | if __name__ == '__main__': 31 | main() 32 | -------------------------------------------------------------------------------- /packages/requests_sp/timeout_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import requests 3 | from requests.exceptions import Timeout 4 | 5 | 6 | def main(): 7 | try: 8 | r = requests.get('http://httpbin.org/delay/1', timeout=(3, 5)) # ConnectTimeout = 3, ReadTimeout = 5 9 | # r = requests.get('http://httpbin.org/delay/1', timeout=5) # ConnectTimeout = ReadTimeout = 5 10 | print(r.status_code) 11 | print int(r.elapsed.total_seconds() * 1000) # ms 12 | except Timeout: 13 | # http://docs.python-requests.org/en/master/_modules/requests/exceptions/ 14 | # ConnectTimeout(ConnectionError, Timeout) 15 | # ReadTimeout(Timeout) 16 | print("timeout") 17 | 18 | 19 | if __name__ == '__main__': 20 | main() 21 | -------------------------------------------------------------------------------- /packages/struct_sp/hello_struct.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | from struct import pack, unpack 3 | from base64 import urlsafe_b64encode, urlsafe_b64decode 4 | 5 | 6 | def main(): 7 | print(urlsafe_b64encode(pack('L', 123))) 8 | print(urlsafe_b64encode(pack('L', 1234567))) 9 | print(urlsafe_b64encode(pack('L', 1234567890))) 10 | print(urlsafe_b64encode(pack('L', 1234567890123))) 11 | print(urlsafe_b64encode(pack('L', 12345678901234567))) 12 | print(urlsafe_b64encode(pack('L', 130000000000000000))) 13 | print(urlsafe_b64encode(pack('L', 990000000000000000))) 14 | print(unpack('L', urlsafe_b64decode('AADNrE_azQE='))[0]) 15 | print(unpack('L', urlsafe_b64decode('AACjN8EvvQ0='))[0]) 16 | 17 | 18 | if __name__ == '__main__': 19 | main() 20 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/before_after_request_sp/app.py: -------------------------------------------------------------------------------- 1 | from flask import Flask, request 2 | 3 | from frameworks.flask_snippets.before_after_request_sp.bp import bp 4 | 5 | app = Flask(__name__) 6 | app.register_blueprint(bp, url_prefix='/bp') 7 | 8 | 9 | @app.before_request 10 | def before_request(): 11 | print('>>> before_request') 12 | print(request.method) 13 | print(type(request.method)) 14 | 15 | 16 | @app.after_request 17 | def after_request(resp): 18 | print('>>> after_request') 19 | print(resp) 20 | return resp 21 | 22 | 23 | @app.route("/", methods=['GET', 'POST']) 24 | def index(): 25 | return "Hello World!" 26 | 27 | 28 | def main(): 29 | app.run(debug=True) 30 | 31 | 32 | if __name__ == '__main__': 33 | main() 34 | -------------------------------------------------------------------------------- /packages/dataclasses_sp/poly_field_sp.py: -------------------------------------------------------------------------------- 1 | from dataclasses import dataclass, asdict 2 | 3 | 4 | @dataclass 5 | class SimpleDataObject(object): 6 | field_x: str 7 | 8 | 9 | @dataclass 10 | class SimpleDataObjectA(SimpleDataObject): 11 | field_a: int 12 | 13 | 14 | @dataclass 15 | class SimpleDataObjectB(SimpleDataObject): 16 | field_b: str 17 | 18 | 19 | @dataclass 20 | class DataObject(object): 21 | field_c: int 22 | s_obj: SimpleDataObject 23 | 24 | 25 | def main(): 26 | d2 = {'field_c': 100, 's_obj': SimpleDataObject(**{'field_a': 1, 'field_b': 'aaa'})} 27 | d2 = {'field_c': 100, 's_obj': {'field_a': 1, 'field_b': 'aaa'}} 28 | obj2 = DataObject(**d2) 29 | print(obj2) 30 | 31 | 32 | if __name__ == '__main__': 33 | main() 34 | -------------------------------------------------------------------------------- /packages/peewee_sp/model_and_dict.py: -------------------------------------------------------------------------------- 1 | from playhouse.shortcuts import model_to_dict, dict_to_model, update_model_from_dict 2 | 3 | from queries import Foo 4 | 5 | 6 | def main(): 7 | foo = Foo.get(id=1) 8 | print(foo) 9 | print(model_to_dict(foo)) 10 | print(model_to_dict(foo, exclude=[Foo.type])) 11 | print(model_to_dict(foo, extra_attrs=['upper_name'])) 12 | 13 | d = { 14 | 'id': 1, 15 | 'name': 'n1', 16 | 'type': 1, 17 | } 18 | foo = dict_to_model(Foo, d) 19 | print(foo) 20 | 21 | d['type'] = 2 22 | update_model_from_dict(foo, d) 23 | print(foo) 24 | 25 | d['id'] = 2 26 | update_model_from_dict(foo, d) # id 同样会改掉 27 | print(foo) 28 | 29 | 30 | if __name__ == '__main__': 31 | main() 32 | -------------------------------------------------------------------------------- /packages/pydantic_sp/recursive_models.py: -------------------------------------------------------------------------------- 1 | from typing import List 2 | from pydantic import BaseModel 3 | 4 | 5 | class Foo(BaseModel): 6 | count: int = ... 7 | size: float = None 8 | 9 | 10 | class Bar(BaseModel): 11 | apple = 'x' 12 | banana = 'y' 13 | 14 | 15 | class Spam(BaseModel): 16 | foo: Foo = ... 17 | bars: List[Bar] = ... 18 | 19 | 20 | def main(): 21 | m = Spam(foo={'count': 4}, bars=[{'apple': 'x1'}, {'apple': 'x2'}]) 22 | print(m) 23 | # > Spam foo= bars=[, ] 24 | print(m.dict()) 25 | # {'foo': {'count': 4, 'size': None}, 'bars': [{'apple': 'x1', 'banana': 'y'}, {'apple': 'x2', 'banana': 'y'}]} 26 | 27 | 28 | if __name__ == '__main__': 29 | main() 30 | -------------------------------------------------------------------------------- /prjs/026-json2csv/app.py: -------------------------------------------------------------------------------- 1 | import json 2 | import csv 3 | 4 | 5 | def load_json(name): 6 | with open(name) as f: 7 | s = json.load(f) 8 | return s 9 | 10 | 11 | def ds_2_rows(d1, d2, d3): 12 | rows = [(k, v, d2.get(k, ""), d3.get(k, "")) for (k, v) in d1.items()] 13 | return [('key', 'zh', 'en', 'jp')] + rows 14 | 15 | 16 | def dump_csv(rows): 17 | with open('out.csv', 'w', newline='') as f: 18 | writer = csv.writer(f, dialect='excel') 19 | writer.writerows(rows) 20 | 21 | 22 | def main(): 23 | dz = load_json("zh-CN.json") 24 | de = load_json("en-US.json") 25 | dj = load_json("ja-JP.json") 26 | rows = ds_2_rows(dz, de, dj) 27 | # print(rows) 28 | dump_csv(rows) 29 | 30 | 31 | if __name__ == '__main__': 32 | main() 33 | -------------------------------------------------------------------------------- /Pipfile: -------------------------------------------------------------------------------- 1 | [[source]] 2 | url = "https://pypi.python.org/simple" 3 | verify_ssl = true 4 | name = "pypi" 5 | 6 | [packages] 7 | flask = "*" 8 | xmltodict = "*" 9 | python-telegram-bot = "*" 10 | "beautifulsoup4" = "*" 11 | mako = "*" 12 | flask-mako = "*" 13 | wtforms = "*" 14 | aiohttp = "*" 15 | peewee = "*" 16 | pymysql = "*" 17 | requests = "*" 18 | ipython = "*" 19 | fire = "*" 20 | dataclasses = "*" 21 | schematics = "*" 22 | pydantic = "*" 23 | redis = "*" 24 | pendulum = "*" 25 | mypy = "*" 26 | mypy-extensions = "*" 27 | pillow = "*" 28 | pyjwt = "*" 29 | geetest = "*" 30 | profilehooks = "*" 31 | retrying = "*" 32 | jieba = "*" 33 | tqdm = "*" 34 | packaging = "*" 35 | pypinyin = "*" 36 | xerox = "*" 37 | 38 | [dev-packages] 39 | pytest = "*" 40 | 41 | [requires] 42 | python_version = "3.7" 43 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/datetime_and_timestamp.py: -------------------------------------------------------------------------------- 1 | import time 2 | import datetime 3 | 4 | 5 | def dt2ts(): 6 | print("=== dt2ts ===") 7 | dt = datetime.datetime.now() 8 | print(dt.timestamp()) # python 2 中没有这个方法 9 | print(time.time()) 10 | 11 | d = datetime.datetime.now().date() 12 | print(d) 13 | print(datetime.datetime.combine(d, datetime.time()).timestamp()) 14 | print(time.mktime(d.timetuple())) 15 | 16 | 17 | def ts2dt(): 18 | print("=== ts2dt ===") 19 | ts = 1575266499 20 | dt = datetime.datetime.fromtimestamp(ts) 21 | print(dt) 22 | 23 | 24 | def main(): 25 | dt2ts() 26 | ts2dt() 27 | 28 | 29 | if __name__ == '__main__': 30 | main() 31 | 32 | # https://www.programiz.com/python-programming/datetime/timestamp-datetime 33 | -------------------------------------------------------------------------------- /packages/pendulum_sp/parse_sp.py: -------------------------------------------------------------------------------- 1 | import pendulum 2 | 3 | 4 | def main(): 5 | dts = '2018-04-13 16:06:11.844265+08:00' 6 | dt = pendulum.parse(dts) 7 | print(dt) 8 | 9 | # without timezone 10 | dts = '2018-04-13 17:59:15' 11 | dt = pendulum.parse(dts) 12 | print(dt) 13 | 14 | # parse with timezone 15 | tz_shanghai = pendulum.timezone('Asia/Shanghai') 16 | 17 | dts = '2018-04-13 17:59:15' 18 | # dt = pendulum.parse(dts, tz='Asia/Shanghai') 19 | dt = pendulum.parse(dts, tz=tz_shanghai) 20 | print(dt) 21 | print(dt.in_tz(tz_shanghai)) 22 | 23 | 24 | dts = '2018-04-13 17:59:15+00:00' 25 | dt = pendulum.parse(dts, tz='Asia/Shanghai') 26 | print(dt) 27 | print(dt.in_tz(tz_shanghai)) 28 | 29 | 30 | if __name__ == '__main__': 31 | main() 32 | -------------------------------------------------------------------------------- /basic/attribute_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | class A(object): 5 | def __init__(self, a): 6 | self.a = a 7 | 8 | def f1(self): 9 | print('hello f1') 10 | 11 | 12 | def main(): 13 | a1 = A('aaa') 14 | print(A.__dict__) 15 | print(A.__dict__['f1']) 16 | print(hasattr(a1, 'f1')) 17 | print(hasattr(a1, 'f2')) 18 | a1.f1() 19 | # a1.f2() # AttributeError: 'A' object has no attribute 'f2' 20 | 21 | d = {'b': 'bb'} 22 | # print(d.__dict__) # AttributeError: 'dict' object has no attribute '__dict__' 23 | print(hasattr(d, 'b')) # False 24 | print('b' in d) # True 25 | 26 | 27 | if __name__ == '__main__': 28 | main() 29 | 30 | 31 | # https://stackoverflow.com/questions/610883/how-to-know-if-an-object-has-an-attribute-in-python 32 | -------------------------------------------------------------------------------- /basic/decorator_sp/retry_with_decorator.py: -------------------------------------------------------------------------------- 1 | import requests 2 | 3 | 4 | def retries(times=3): 5 | def wrap(func): 6 | def r(*args, **kw): 7 | t = 0 8 | while True: 9 | try: 10 | return func(*args, **kw) 11 | except requests.exceptions.ConnectTimeout as e: 12 | t += 1 13 | if t < times: 14 | print('retry {}'.format(t)) 15 | else: 16 | raise e 17 | return r 18 | return wrap 19 | 20 | 21 | @retries() 22 | def make_a_get(): 23 | return requests.get('http://httpbin.org/get', timeout=(0.3, 2)) 24 | 25 | 26 | def main(): 27 | print(make_a_get()) 28 | 29 | 30 | if __name__ == '__main__': 31 | main() 32 | -------------------------------------------------------------------------------- /packages/coroutine_sp/yield_sample.py: -------------------------------------------------------------------------------- 1 | 2 | def printer(): 3 | print('>>> printer start') 4 | counter = 0 5 | while True: 6 | print('>>> in while') 7 | string = yield 8 | print('[{0}] {1}'.format(counter, string)) 9 | counter += 1 10 | 11 | 12 | def test_printer(): 13 | p = printer() 14 | print(">>> let's next") 15 | next(p) 16 | # 如果不 next 就直接 send 的话 TypeError: can't send non-None value to a just-started generator 17 | print(">>> send hi") 18 | p.send('Hi') 19 | print(">>> send my...") 20 | p.send('My name is hsfzxjy.') 21 | print(">>> send bye") 22 | p.send('Bye') 23 | print(">>> send bye!") 24 | p.send('bye!') 25 | 26 | 27 | def main(): 28 | test_printer() 29 | 30 | 31 | if __name__ == '__main__': 32 | main() 33 | -------------------------------------------------------------------------------- /packages/dataclasses_sp/load_sp.py: -------------------------------------------------------------------------------- 1 | from dataclasses import dataclass, fields 2 | 3 | 4 | @dataclass 5 | class XDataClass(object): 6 | """dataclass can load dict or obj""" 7 | 8 | @classmethod 9 | def load(cls, data): 10 | """load a dict/obj to dataclass 11 | 12 | auto load dataclass fields recursively 13 | auto grab needed obj attrs 14 | """ 15 | if isinstance(data, dict): 16 | print('>>> dict') 17 | else: 18 | print('>>> obj') 19 | # cls_fields = fields(cls) 20 | init() 21 | 22 | 23 | # @classmethod 24 | # def _load_inner(cls, ): 25 | 26 | 27 | def main(): 28 | print(XDataClass.load({'foo': 'bar'})) 29 | print(XDataClass.load(Foo('bar'))) 30 | 31 | 32 | if __name__ == '__main__': 33 | main() 34 | -------------------------------------------------------------------------------- /packages/filter_snippets/filter_performance.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import time 3 | 4 | 5 | def timeit(method): 6 | 7 | def timed(*args, **kw): 8 | ts = time.time() 9 | result = method(*args, **kw) 10 | te = time.time() 11 | 12 | print '%r (%r, %r) %2.2f sec' % \ 13 | (method.__name__, args, kw, te - ts) 14 | return result 15 | 16 | return timed 17 | 18 | 19 | @timeit 20 | def f1(): 21 | for i in range(100): 22 | l1 = range(100000) 23 | l2 = filter(lambda x: x % 2 == 0, l1) 24 | 25 | 26 | @timeit 27 | def f2(): 28 | for i in range(100): 29 | l1 = range(100000) 30 | l2 = [x for x in l1 if x % 2 == 0] 31 | 32 | 33 | def main(): 34 | f1() 35 | f2() 36 | 37 | 38 | if __name__ == '__main__': 39 | main() 40 | -------------------------------------------------------------------------------- /basic/iter_sp/iter_sp.py: -------------------------------------------------------------------------------- 1 | def func(i: int): 2 | for i in range(i, i + 2): 3 | yield i * i 4 | 5 | 6 | def iter_print(it): 7 | print(f'>>> {it}:') 8 | for i in it: 9 | print(i) 10 | 11 | 12 | def main(): 13 | l = ['foo', 'bar'] 14 | s = {'a', 'b'} 15 | r = range(3) 16 | f = func(2) 17 | print(l, s, r, f) 18 | print(iter(l), iter(s), iter(r), iter(f)) 19 | 20 | for x in (l, s, r, f): 21 | iter_print(x) 22 | 23 | print(iter(iter(l))) 24 | print(iter(iter(iter(l)))) 25 | 26 | # raise some exceptions 27 | # iter(1) # TypeError: 'int' object is not iterable 28 | # list(1) # TypeError: 'int' object is not iterable 29 | 30 | 31 | if __name__ == '__main__': 32 | main() 33 | 34 | # https://docs.python.org/3/tutorial/classes.html#iterators 35 | -------------------------------------------------------------------------------- /packages/peewee_sp/exceptions_sp.py: -------------------------------------------------------------------------------- 1 | from peewee import * 2 | from packages.peewee_sp.mysql_db import db 3 | 4 | 5 | class BaseModel(Model): 6 | class Meta: 7 | database = db 8 | 9 | 10 | class EModel(BaseModel): 11 | my_char = CharField(max_length=10) 12 | 13 | 14 | def create_table(): 15 | db.create_tables([EModel]) 16 | 17 | 18 | def drop_table(): 19 | db.create_tables([EModel]) 20 | 21 | 22 | def does_not_exist(): 23 | EModel.get_by_id(11111) # DoesNotExist 24 | 25 | 26 | def data_error(): 27 | EModel.create(my_char='a' * 11) # peewee.DataError: (1406, "Data too long for column 'my_char' at row 1") 28 | 29 | 30 | def main(): 31 | # create_table() 32 | # does_not_exist() 33 | data_error() 34 | # drop_table() 35 | 36 | 37 | if __name__ == '__main__': 38 | main() 39 | -------------------------------------------------------------------------------- /packages/requests_sp/save_img.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import shutil 3 | import requests 4 | 5 | 6 | def save_img(path, url): 7 | print(path) 8 | 9 | r = requests.get(url, stream=True) 10 | if r.status_code == 200: 11 | with open(path, 'wb') as f: 12 | r.raw.decode_content = True # # decode based on content-encoding 13 | print(type(r.raw)) 14 | shutil.copyfileobj(r.raw, f) 15 | 16 | 17 | def main(): 18 | img_path = "xxx.jpg" 19 | url = "https://qn.cdn.cliiip.com/imgs/u/4c3f70fd-f1c4-4232-a6ff-9228ce164fc5.png" 20 | save_img(img_path, url) 21 | 22 | 23 | if __name__ == '__main__': 24 | main() 25 | 26 | 27 | # stream=True: Advanced Usage — Requests 2.18.1 documentation http://docs.python-requests.org/en/master/user/advanced/#body-content-workflow 28 | -------------------------------------------------------------------------------- /prjs/014-count-text/app.py: -------------------------------------------------------------------------------- 1 | from collections import defaultdict 2 | 3 | import csv 4 | 5 | 6 | def read_data(): 7 | # f_name = 'foo.txt' 8 | f_name = 'search_log.txt' 9 | d = defaultdict(int) 10 | with open(f_name) as f: 11 | for line in f.readlines(): 12 | text = line.strip() 13 | if not text: 14 | continue 15 | d[text] += 1 16 | l = list(d.items()) 17 | l.sort(key=lambda x: x[1], reverse=True) 18 | return l 19 | 20 | 21 | def write_date(l): 22 | f_name = 'top_query_until_2018-09-19.csv' 23 | with open(f_name, 'w', newline='') as f: 24 | writer = csv.writer(f) 25 | writer.writerows(l) 26 | 27 | 28 | def main(): 29 | l = read_data() 30 | write_date(l) 31 | print(l) 32 | 33 | 34 | if __name__ == '__main__': 35 | main() 36 | -------------------------------------------------------------------------------- /utils/001-read-ids-from-file/app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import argparse 3 | 4 | 5 | def read_ids_from_file(ids_file): 6 | ids = [] 7 | with open(ids_file) as f: 8 | for line in f.readlines(): 9 | _line = line.strip() 10 | if not _line: 11 | continue 12 | ids.append(int(_line)) 13 | return ids 14 | 15 | 16 | def main(): 17 | parser = argparse.ArgumentParser() 18 | parser.add_argument("-i", "--ids_file", help='select ids file', required=True) 19 | args = parser.parse_args() 20 | ids_file = args.ids_file 21 | ids = read_ids_from_file(ids_file) 22 | print('{} ids'.format(len(ids))) 23 | print('{}...'.format(', '.join(map(str, ids[:10]))) if len(ids) > 10 else '{}'.format(', '.join(map(str, ids)))) 24 | 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /prjs/001-covert-img-to-rgb/notes.md: -------------------------------------------------------------------------------- 1 | # 把 CMYK 模式的图片转换为 RGB 模式 2 | 3 | - Finder 和预览打开 CMYK 的图片颜色正常 4 | - Chrome 中显示 CMYK 的图片颜色异常 5 | - Photoshop 转换完的效果是正常的，不过 CMYK 到 RGB 再转换回 CMYK 颜色会发生一点变化 6 | - 未设置 icc 的时候直接用 Pillow 转换图片到 RGB 的效果和浏览器中异常的效果几乎一样 7 | - 设置对应的 icc 后转换出来的是接近正常的 8 | 9 | ref: 10 | 11 | - [python - Conversion from CMYK to RGB with Pillow is different from that of Photoshop - Stack Overflow](https://stackoverflow.com/questions/38855022/conversion-from-cmyk-to-rgb-with-pillow-is-different-from-that-of-photoshop) 12 | - [Pillow — Pillow (PIL Fork) 4.4.0.dev0 documentation](http://pillow.readthedocs.io/en/latest/) 13 | - [ICC profile downloads - Mac](http://www.adobe.com/support/downloads/iccprofiles/iccprofiles_mac.html) 14 | - [sRGB Color Space Profile.ICM](https://github.com/xorgy/graphicsmagick/blob/master/profiles/sRGB%20Color%20Space%20Profile.ICM) 15 | -------------------------------------------------------------------------------- /packages/json_sp/json_encoder_sp.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | import json 3 | 4 | 5 | class MyEncoder(json.JSONEncoder): 6 | ENCODER_BY_TYPE = { 7 | datetime.datetime: lambda dt: dt.isoformat(), 8 | set: list, 9 | } 10 | 11 | def default(self, o): 12 | try: 13 | encoder = self.ENCODER_BY_TYPE[type(o)] 14 | except KeyError: 15 | return super().default(o) 16 | return encoder(o) 17 | 18 | 19 | def main(): 20 | data = { 21 | "my_dt": datetime.datetime.now(), 22 | "my_set": {1, 2, 3}, 23 | } 24 | print(data) 25 | print(json.dumps(data, cls=MyEncoder)) 26 | 27 | 28 | if __name__ == '__main__': 29 | main() 30 | 31 | # https://github.com/samuelcolvin/pydantic/issues/133 32 | # https://github.com/tutorcruncher/socket-server/blob/master/tcsocket/app/utils.py#L16-L35 33 | -------------------------------------------------------------------------------- /basic/doctest_sp/doctest_sp.py: -------------------------------------------------------------------------------- 1 | import math 2 | 3 | 4 | def factorial(n): 5 | """ 6 | Return the factorial of n, an exact integer >= 0. 7 | 8 | >>> factorial(1) 9 | 1 10 | >>> factorial(2) 11 | 2 12 | 13 | :param n: 14 | :return: 15 | """ 16 | if not n >= 0: 17 | raise ValueError("n must be >= 0") 18 | if math.floor(n) != n: 19 | raise ValueError("n must be exact integer") 20 | if n+1 == n: # catch a value like 1e300 21 | raise OverflowError("n too large") 22 | result = 1 23 | factor = 2 24 | while factor <= n: 25 | result *= factor 26 | factor += 1 27 | return result 28 | 29 | 30 | def main(): 31 | print(factorial(1)) 32 | print(factorial(2)) 33 | 34 | 35 | if __name__ == '__main__': 36 | main() 37 | 38 | 39 | # https://docs.python.org/2/library/doctest.html 40 | -------------------------------------------------------------------------------- /packages/filesystem/get_path.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import os 3 | 4 | 5 | def get_file_path(): 6 | return os.path.realpath(__file__) 7 | 8 | 9 | def get_file_dir_path(): 10 | return os.path.dirname(os.path.realpath(__file__)) 11 | 12 | 13 | def get_file_name(): 14 | return os.path.basename(get_file_path()) 15 | 16 | 17 | def get_cwd(): 18 | return os.getcwd() 19 | 20 | 21 | def get_home_path(): 22 | home = os.path.expanduser("~") 23 | return home 24 | 25 | 26 | def main(): 27 | print('__file__ >>> {}'.format(__file__)) 28 | print('file path >>> {}'.format(get_file_path())) 29 | print('dir path >>> {}'.format(get_file_dir_path())) 30 | print('file name >>> {}'.format(get_file_name())) 31 | print('cwd >>> {}'.format(get_cwd())) 32 | print('home >>> {}'.format(get_home_path())) 33 | 34 | if __name__ == '__main__': 35 | main() 36 | -------------------------------------------------------------------------------- /builtin_packages/re_sp/re_collect.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import re 3 | 4 | 5 | def find_and_print(order, r, s, group=0): 6 | m = re.search(r, s) 7 | print('{}: {} | {}'.format(order, s, m.group(group) if m else None)) 8 | 9 | 10 | def main(): 11 | s = '- [1.1.1 连接管理与安全性](#1.1.1 连接管理与安全性)' # to find 1.1.1 连接管理与安全性 12 | find_and_print('A', r"\(#(.*)\)", s, 1) 13 | r_url = r"^(ht|f)tp(s?)\:\/\/[0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*(:(0-9)*‌​)*(\/?)([a-zA-Z0-9\-‌​\.\?\,\'\/\\\+&%‌​\$#_]*)?$" 14 | s = 'xxx http://exp.com' # to find None 15 | find_and_print('B', r_url, s, 0) 16 | s = 'http://exp.com' # to find http://exp.com 17 | find_and_print('B', r_url, s, 0) 18 | 19 | 20 | if __name__ == '__main__': 21 | main() 22 | 23 | # https://stackoverflow.com/questions/161738/what-is-the-best-regular-expression-to-check-if-a-string-is-a-valid-url 24 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/errorhandler_app/app2.py: -------------------------------------------------------------------------------- 1 | from flask import Flask, abort, jsonify 2 | from werkzeug.exceptions import HTTPException, default_exceptions 3 | 4 | app = Flask('test') 5 | 6 | 7 | @app.errorhandler(Exception) 8 | def handle_error(e): 9 | code = 500 10 | if isinstance(e, HTTPException): 11 | code = e.code 12 | return jsonify(error=str(e)), code 13 | 14 | 15 | for ex in default_exceptions: 16 | app.register_error_handler(ex, handle_error) 17 | 18 | 19 | @app.route('/') 20 | def index(): 21 | return 'hello world' 22 | 23 | 24 | @app.route("/500") 25 | def error_500(): 26 | a = 100 / 0 27 | return f'hello {a}' 28 | 29 | 30 | @app.route("/r500") 31 | def error_r500(): 32 | abort(500) 33 | return 'hello' 34 | 35 | 36 | def main(): 37 | app.run(debug=True) 38 | 39 | 40 | if __name__ == '__main__': 41 | main() 42 | -------------------------------------------------------------------------------- /packages/peewee_sp/group_by_and_count.py: -------------------------------------------------------------------------------- 1 | from peewee import * 2 | 3 | from packages.peewee_sp.mysql_db import db 4 | 5 | 6 | class BaseModel(Model): 7 | class Meta: 8 | database = db 9 | 10 | 11 | class Comment(BaseModel): 12 | parent_id = IntegerField() 13 | 14 | 15 | def create(): 16 | db.connect() 17 | db.create_tables([Comment]) 18 | Comment.create(parent_id=1) 19 | Comment.create(parent_id=1) 20 | Comment.create(parent_id=2) 21 | 22 | 23 | def main(): 24 | # create() 25 | query = (Comment.select(Comment.parent_id, fn.COUNT(Comment.id).alias('ct')) 26 | .group_by(Comment.parent_id)) 27 | for obj in query: 28 | print(obj.parent_id, obj.ct) 29 | 30 | 31 | if __name__ == '__main__': 32 | main() 33 | 34 | 35 | # https://stackoverflow.com/questions/45760563/returning-a-count-of-grouped-items-in-peewee-orm 36 | -------------------------------------------------------------------------------- /packages/pyjwt_sp/readme.md: -------------------------------------------------------------------------------- 1 | # pyjwt usage 2 | 3 | ## jwt 里一些字段的含义 4 | 5 | - iat，Issued At，授权的时间 6 | - exp，Expiration Time，失效时间 7 | - nbf，Not Before Time，生效时间 8 | - iss，Issuer，授权者 9 | - sub，Subject，授权目的 10 | - jti，JWT ID，ID 11 | 12 | 上面的时间都是用时间戳 13 | 14 | ## refs 15 | 16 | - [RFC 7519 - JSON Web Token (JWT)](https://tools.ietf.org/html/rfc7519) 17 | - [JSON Web Token - Wikipedia](https://en.wikipedia.org/wiki/JSON_Web_Token) 18 | - [Welcome to PyJWT — PyJWT 1.6.1 documentation](https://pyjwt.readthedocs.io/en/latest/) 19 | - [Flask + PyJWT 实现基于Json Web Token的用户认证授权 – 那时那你](https://www.thatyou.cn/flask-pyjwt-%E5%AE%9E%E7%8E%B0%E5%9F%BA%E4%BA%8Ejson-web-token%E7%9A%84%E7%94%A8%E6%88%B7%E8%AE%A4%E8%AF%81%E6%8E%88%E6%9D%83/) 20 | - [IBM Knowledge Center - 用于 OAuth 客户机授权的 JSON Web 令牌 (JWT)](https://www.ibm.com/support/knowledgecenter/zh/SSEQTP_8.5.5/com.ibm.websphere.wlp.doc/ae/cwlp_jwttoken.html) 21 | -------------------------------------------------------------------------------- /packages/asyncio_sp/async_wget.py: -------------------------------------------------------------------------------- 1 | import asyncio 2 | 3 | 4 | async def wget(host): 5 | print('wget %s...' % host) 6 | connect = asyncio.open_connection(host, 80) 7 | reader, writer = await connect 8 | header = f'GET / HTTP/1.0\r\nHost: {host}\r\n\r\n' 9 | writer.write(header.encode('utf-8')) 10 | await writer.drain() 11 | while True: 12 | line = await reader.readline() 13 | if line == b'\r\n': 14 | break 15 | print('{host} header > {line}'.format(host=host, line=line.decode('utf-8').rstrip())) 16 | # ignore the body, close the socket 17 | writer.close() 18 | 19 | 20 | def main(): 21 | loop = asyncio.get_event_loop() 22 | tasks = [wget(host) for host in ['httpbin.org', 'requestb.in']] 23 | loop.run_until_complete(asyncio.wait(tasks)) 24 | loop.close() 25 | 26 | 27 | if __name__ == '__main__': 28 | main() 29 | -------------------------------------------------------------------------------- /prjs/019-read-video-duration/app.py: -------------------------------------------------------------------------------- 1 | import subprocess 2 | 3 | 4 | def get_duration(url): 5 | """Get the duration of a video using ffprobe.""" 6 | cmd = 'ffprobe -i {} -show_entries format=duration -v quiet -of csv="p=0"'.format(url) 7 | output = subprocess.check_output( 8 | cmd, 9 | shell=True, 10 | stderr=subprocess.STDOUT 11 | ) 12 | return float(output) 13 | 14 | 15 | def main(): 16 | video_urls = [ 17 | "http://i4.chuimg.com/ce94ccea88ae11e89c2402420a000130_720w_720h.mp4", 18 | "http://i4.chuimg.com/0a7e9af88a4711e89c2402420a000130_720w_720h.mp4", 19 | ] 20 | for video_url in video_urls: 21 | print(video_url, get_duration(video_url)) 22 | 23 | 24 | if __name__ == '__main__': 25 | main() 26 | 27 | # https://stackoverflow.com/questions/26974921/how-to-get-a-online-videos-duration-without-downloading-the-full-video 28 | -------------------------------------------------------------------------------- /utils/005-get-image-type/app.py: -------------------------------------------------------------------------------- 1 | import imghdr 2 | 3 | 4 | def get_image_type_of_file(file_name): 5 | type_ = imghdr.what(file_name) or '' 6 | if type_ == 'jpeg': 7 | type_ = 'jpg' 8 | return type_ 9 | 10 | 11 | def get_image_type_of_file_data(file_data): 12 | type_ = imghdr.what('', file_data) or '' 13 | if type_ == 'jpeg': 14 | type_ = 'jpg' 15 | return type_ 16 | 17 | 18 | def main(): 19 | file_name = '../../packages/_common_img/google.jpg' 20 | file_name2 = '../../packages/_common_img/google.jpg.png' 21 | print(get_image_type_of_file(file_name)) 22 | print(get_image_type_of_file(file_name2)) 23 | with open(file_name, 'rb') as f: 24 | print(get_image_type_of_file_data(f.read())) 25 | with open(file_name2, 'rb') as f2: 26 | print(get_image_type_of_file_data(f2.read())) 27 | 28 | if __name__ == '__main__': 29 | main() 30 | -------------------------------------------------------------------------------- /packages/coroutine_sp/yield_task_scheduler.py: -------------------------------------------------------------------------------- 1 | from collections import deque 2 | 3 | 4 | def task(name, times): 5 | for i in range(times): 6 | yield i 7 | print(name, i) 8 | 9 | 10 | class Runner(object): 11 | 12 | def __init__(self, tasks): 13 | self.tasks = deque(tasks) 14 | 15 | def next(self): 16 | return self.tasks.pop() 17 | 18 | def run(self): 19 | while len(self.tasks): 20 | task = self.next() 21 | try: 22 | i = next(task) 23 | print(f'>>> i:{i}') 24 | except StopIteration: 25 | pass 26 | else: 27 | self.tasks.appendleft(task) 28 | 29 | 30 | def main(): 31 | Runner([ 32 | task('hsfzxjy', 5), 33 | task('Jack', 4), 34 | task('Bob', 6) 35 | ]).run() 36 | 37 | 38 | if __name__ == '__main__': 39 | main() 40 | -------------------------------------------------------------------------------- /packages/filesystem/read_write_file.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def write_and_read(): 5 | print("=== write_and_read ===") 6 | with open('temp.txt', 'w') as f: 7 | f.write('hello\nworld') 8 | with open('temp.txt', 'r') as f: 9 | lines = f.readlines() 10 | print('Lines:\n{}'.format(lines)) 11 | 12 | 13 | def write_with_line_break_and_read(): 14 | print("=== write_with_line_break_and_read ===") 15 | lines = ['hello', 'world'] 16 | with open('temp.txt', 'w') as f: 17 | f.writelines(line + '\n' for line in lines) 18 | with open('temp.txt', 'r') as f: 19 | lines = f.readlines() 20 | print('Lines:\n{}'.format(lines)) 21 | 22 | 23 | def main(): 24 | write_and_read() 25 | write_with_line_break_and_read() 26 | 27 | 28 | if __name__ == '__main__': 29 | main() 30 | 31 | # https://www.guru99.com/reading-and-writing-files-in-python.html 32 | -------------------------------------------------------------------------------- /packages/peewee_sp/transcation/deco.py: -------------------------------------------------------------------------------- 1 | from peewee import Model, CharField, IntegerField, IntegrityError 2 | 3 | from packages.peewee_sp.mysql_db import db 4 | 5 | 6 | class BaseModel(Model): 7 | class Meta: 8 | database = db 9 | 10 | 11 | class TranFoo(BaseModel): 12 | foo = IntegerField(unique=True) 13 | 14 | 15 | class TranBar(BaseModel): 16 | bar = IntegerField(unique=True) 17 | 18 | 19 | def create_tables(): 20 | db.create_tables([TranFoo, TranBar]) 21 | 22 | 23 | @db.atomic() 24 | def create_foo_and_bar(): 25 | TranFoo.create(foo=2) 26 | TranBar.create(bar=10) 27 | 28 | 29 | def main(): 30 | # create_tables() 31 | # TranBar.create(bar=10) 32 | try: 33 | create_foo_and_bar() 34 | except IntegrityError as e: 35 | print(e) 36 | print(TranFoo.select().where(TranFoo.foo==2).count()) 37 | 38 | 39 | if __name__ == '__main__': 40 | main() 41 | -------------------------------------------------------------------------------- /packages/asyncio_sp/asyncio_wget.py: -------------------------------------------------------------------------------- 1 | import asyncio 2 | 3 | 4 | @asyncio.coroutine 5 | def wget(host): 6 | print('wget %s...' % host) 7 | connect = asyncio.open_connection(host, 80) 8 | reader, writer = yield from connect 9 | header = f'GET / HTTP/1.0\r\nHost: {host}\r\n\r\n' 10 | writer.write(header.encode('utf-8')) 11 | yield from writer.drain() 12 | while True: 13 | line = yield from reader.readline() 14 | if line == b'\r\n': 15 | break 16 | print('{host} header > {line}'.format(host=host, line=line.decode('utf-8').rstrip())) 17 | # ignore the body, close the socket 18 | writer.close() 19 | 20 | 21 | def main(): 22 | loop = asyncio.get_event_loop() 23 | tasks = [wget(host) for host in ['httpbin.org', 'requestb.in']] 24 | loop.run_until_complete(asyncio.wait(tasks)) 25 | loop.close() 26 | 27 | 28 | if __name__ == '__main__': 29 | main() 30 | -------------------------------------------------------------------------------- /frameworks/flask_snippets/flask_json_encoder/app.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | from flask import Flask, jsonify 3 | from flask.json import JSONEncoder 4 | 5 | 6 | class MyJSONEncoder(JSONEncoder): 7 | 8 | def default(self, obj): 9 | try: 10 | if isinstance(obj, datetime.datetime): 11 | return obj.strftime('%Y-%m-%d %H:%M:%S') 12 | iterable = iter(obj) 13 | except TypeError as e: 14 | pass 15 | else: 16 | return list(iterable) 17 | return JSONEncoder.default(self, obj) 18 | 19 | 20 | app = Flask(__name__) 21 | app.json_encoder = MyJSONEncoder 22 | 23 | 24 | @app.route("/") 25 | def hello(): 26 | now = datetime.datetime.now() 27 | return jsonify({"now": now, 'foo': range(10)}) 28 | 29 | 30 | def main(): 31 | app.run(debug=True) 32 | 33 | 34 | if __name__ == '__main__': 35 | main() 36 | 37 | # http://flask.pocoo.org/snippets/119/ 38 | -------------------------------------------------------------------------------- /packages/aiohttp/simple_aiohttp_server.py: -------------------------------------------------------------------------------- 1 | import asyncio 2 | 3 | from aiohttp import web 4 | 5 | 6 | async def index(request): 7 | await asyncio.sleep(0.5) 8 | return web.Response(body=b'

Index

') 9 | 10 | 11 | async def hello(request): 12 | await asyncio.sleep(0.5) 13 | text = '

hello, %s!

' % request.match_info['name'] 14 | return web.Response(body=text.encode('utf-8')) 15 | 16 | 17 | async def init(loop): 18 | app = web.Application(loop=loop) 19 | app.router.add_route('GET', '/', index) 20 | app.router.add_route('GET', '/hello/{name}', hello) 21 | srv = await loop.create_server(app.make_handler(), '127.0.0.1', 8000) 22 | print('Server started at http://127.0.0.1:8000...') 23 | return srv 24 | 25 | 26 | def main(): 27 | loop = asyncio.get_event_loop() 28 | loop.run_until_complete(init(loop)) 29 | loop.run_forever() 30 | 31 | 32 | if __name__ == '__main__': 33 | main() 34 | -------------------------------------------------------------------------------- /packages/dataclasses_sp/hello_dataclasses.py: -------------------------------------------------------------------------------- 1 | from dataclasses import dataclass, asdict 2 | 3 | 4 | @dataclass 5 | class SimpleDataObject(object): 6 | field_a: int 7 | field_b: str 8 | 9 | 10 | @classmethod 11 | class DataObject(object): 12 | field_c: int 13 | s_obj: SimpleDataObject 14 | 15 | 16 | def main(): 17 | obj = SimpleDataObject(1, 'aaa') 18 | print(obj) 19 | print(asdict(obj)) 20 | 21 | obj2 = SimpleDataObject(100, obj) 22 | print(obj2) 23 | print(asdict(obj2)) 24 | 25 | d = {'field_a': 1, 'field_b': 'aaa'} 26 | obj = SimpleDataObject(field_a=1, field_b='aaa') 27 | print(obj) 28 | obj = SimpleDataObject(**d) 29 | print(obj) 30 | print(type(obj)) 31 | 32 | # d2 = {'field_a': 100, 'field_b': {'field_a': 1, 'field_b': 'aaa'}} 33 | # obj2 = DataObject() 34 | # obj2 = DataObject(**d2) 35 | # print(obj2) 36 | 37 | 38 | if __name__ == '__main__': 39 | main() 40 | -------------------------------------------------------------------------------- /packages/pydantic_sp/demo_subclass_and_load_data.py: -------------------------------------------------------------------------------- 1 | from pydantic import BaseModel 2 | 3 | 4 | class Foo(BaseModel): 5 | foo: str 6 | 7 | 8 | class Bar(Foo): 9 | bar: str 10 | 11 | 12 | class FooView(BaseModel): 13 | foo_uc: str # uppercase 14 | 15 | @classmethod 16 | def trans_data(cls, data: dict) -> dict: 17 | data = data.copy() 18 | data['foo_uc'] = data['foo'].upper() 19 | return data 20 | 21 | 22 | class BarView(FooView): 23 | bar_lc: str 24 | 25 | @classmethod 26 | def trans_data(cls, data: dict) -> dict: 27 | data = super().trans_data(data) 28 | data['bar_lc'] = data['bar'].lower() 29 | return data 30 | 31 | 32 | def main(): 33 | bar = Bar.parse_obj({'foo': 'f', 'bar': 'B'}) 34 | print(bar) 35 | bar_view = BarView.parse_obj(BarView.trans_data(bar.dict())) 36 | print(bar_view) 37 | 38 | 39 | if __name__ == '__main__': 40 | main() 41 | 42 | -------------------------------------------------------------------------------- /basic/copy_sp/copy_sp.py: -------------------------------------------------------------------------------- 1 | import copy 2 | 3 | 4 | def shallow_copy(): 5 | print('=== shallow_copy ===') 6 | d1 = {'a': 1} 7 | print(f'd1: {d1}') 8 | d2 = d1.copy() 9 | print(f'd2: {d2}') 10 | d2['a'] = 2 11 | d2['b'] = 3 12 | print(f'd2: {d2}') 13 | print(f'd1: {d1}') 14 | 15 | d3 = {'d': d1} 16 | print(f'd3: {d3}') 17 | d4 = d3.copy() 18 | print(f'd4: {d4}') 19 | d1['a'] = 2 20 | print(f'd3: {d3}') 21 | print(f'd4: {d4}') 22 | 23 | 24 | def deep_copy(): 25 | print('=== deep_copy ===') 26 | d1 = {'a': 1} 27 | d2 = {'b': d1} 28 | d3 = {'c': d2} 29 | d4 = copy.deepcopy(d3) 30 | print(f'd3: {d3}') 31 | print(f'd4: {d4}') 32 | d3['c']['b']['a'] = 2 33 | print(f'd2: {d2}') 34 | print(f'd3: {d3}') 35 | print(f'd4: {d4}') 36 | 37 | 38 | def main(): 39 | shallow_copy() 40 | deep_copy() 41 | 42 | 43 | if __name__ == '__main__': 44 | main() 45 | -------------------------------------------------------------------------------- /utils/009-download-then-upload-image-file/app.py: -------------------------------------------------------------------------------- 1 | import imghdr 2 | import io 3 | import shutil 4 | 5 | import requests 6 | 7 | 8 | def main(): 9 | image_url = 'https://qn.cdn.cliiip.com/imgs/u/c2eddd32-754b-4e3b-975b-86741561bda5.png' 10 | r = requests.get(image_url, stream=True) 11 | with io.BytesIO() as f: 12 | r.raw.decode_content = True # ? 13 | shutil.copyfileobj(r.raw, f) 14 | f.seek(0) 15 | 16 | r = requests.post( 17 | 'https://httpbin.org/post', 18 | files={ 19 | 'media': f 20 | } 21 | ) 22 | print(r.json()) 23 | 24 | f.name = 'imagefile' 25 | f.seek(0) 26 | r = requests.post( 27 | 'https://httpbin.org/post', 28 | files={ 29 | 'media': (f.name, f), 30 | } 31 | ) 32 | print(r.json()) 33 | 34 | 35 | if __name__ == '__main__': 36 | main() 37 | -------------------------------------------------------------------------------- /basic/str_sp/str_demo.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def split_str(): 5 | print("===== split_str =====") 6 | url = 'www.google.com.hk' 7 | print(url.split('.')) 8 | 9 | 10 | def split_unicode(): 11 | print("===== split_unicode =====") 12 | text = u'正义、秩序、自由' 13 | print(text.split(u'、')) 14 | template = u'城市-职业-昵称' 15 | print(template.split('-')) 16 | 17 | 18 | def sort_str(): 19 | print("===== sort_str =====") 20 | str_list = [ 21 | "0802aaa", 22 | "1202aa", 23 | "0209aaa", 24 | "0812ccc", 25 | "0802ddd", 26 | ] 27 | str_list.sort() 28 | print(str_list) 29 | 30 | 31 | def get_char_of_str(): 32 | print("===== get_char_of_str =====") 33 | s = 'hello' 34 | for c in s: 35 | print(c) 36 | 37 | 38 | def main(): 39 | split_str() 40 | split_unicode() 41 | sort_str() 42 | get_char_of_str() 43 | 44 | 45 | if __name__ == '__main__': 46 | main() 47 | -------------------------------------------------------------------------------- /builtin_packages/datetime_sp/week_day.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | 3 | 4 | def this_monday_and_related_sunday(): 5 | now = datetime.datetime.now() 6 | today = datetime.datetime(now.year, now.month, now.day) 7 | this_monday = today - datetime.timedelta(now.weekday()) 8 | related_sunday = this_monday + datetime.timedelta(6) 9 | return this_monday, related_sunday 10 | 11 | 12 | def chinese_weekday(dt: datetime.datetime) -> str: 13 | cn_number = ['一', '二', '三', '四', '五', '六', '日'] 14 | return f'周{cn_number[dt.weekday()]}' 15 | 16 | 17 | def main(): 18 | print('Hello') 19 | dt = datetime.datetime(2019, 3, 25) 20 | print(dt, dt.weekday()) # 周一 0 21 | 22 | dt += datetime.timedelta(days=6) 23 | print(dt, dt.weekday()) # 周日 6 24 | 25 | this_monday, related_sunday = this_monday_and_related_sunday() 26 | print(chinese_weekday(this_monday), chinese_weekday(related_sunday)) 27 | 28 | 29 | if __name__ == '__main__': 30 | main() 31 | -------------------------------------------------------------------------------- /builtin_packages/re_sp/re_tokens.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import re 3 | 4 | 5 | def add_space_after_hash(s): 6 | m = re.search(r'#(\S+)', s) 7 | if m: 8 | return '# {}'.format(m.group(1)) 9 | return s 10 | 11 | 12 | def find_str(s): 13 | m = re.search(r'https?://www\.example\.com\?abc_d=(\d+)', s) 14 | if m: 15 | return 'find: {} ||| {}'.format(m.group(0), m.group(1)) 16 | return 17 | 18 | 19 | def main(): 20 | print(add_space_after_hash('##')) 21 | print(add_space_after_hash('#1')) 22 | print(add_space_after_hash('# 2')) 23 | print(add_space_after_hash('#大西瓜')) 24 | print(add_space_after_hash('#大西瓜#大西瓜')) 25 | print(find_str('https://www.example.com?abc_d=123')) 26 | print(find_str('http://www.example.com?abc_d=12345')) 27 | print(find_str('https://www.example.com?abc_d=1234589sdf')) 28 | print(find_str('https://www.example.com?abc_d=12345)dsf')) 29 | 30 | 31 | if __name__ == '__main__': 32 | main() 33 | -------------------------------------------------------------------------------- /utils/015-base36/app.py: -------------------------------------------------------------------------------- 1 | def base36encode(number, alphabet='0123456789abcdefghijklmnopqrstuvwxyz'): 2 | """Converts an integer to a base36 string.""" 3 | if not isinstance(number, (int)): 4 | raise TypeError('number must be an integer') 5 | 6 | base36 = '' 7 | sign = '' 8 | 9 | if number < 0: 10 | sign = '-' 11 | number = -number 12 | 13 | if 0 <= number < len(alphabet): 14 | return sign + alphabet[number] 15 | 16 | while number != 0: 17 | number, i = divmod(number, len(alphabet)) 18 | base36 = alphabet[i] + base36 19 | 20 | return sign + base36 21 | 22 | 23 | def base36decode(number): 24 | return int(number, 36) 25 | 26 | 27 | def main(): 28 | print(base36decode('zzzzzz')) 29 | print(base36encode(2176782335)) 30 | print(base36encode(2176782336)) 31 | 32 | 33 | if __name__ == '__main__': 34 | main() 35 | 36 | # https://stackoverflow.com/questions/1181919/python-base-36-encoding 37 | -------------------------------------------------------------------------------- /basic/exception_sp/hello_exception.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | 3 | 4 | def maybe_error(n, raise_it=False): 5 | print('maybe_error == start == {}'.format(n)) 6 | a = None 7 | try: 8 | a = 10 / n 9 | except Exception as e: 10 | print('maybe_error == except == {}'.format(n)) 11 | print('e: {}'.format(e)) 12 | if raise_it: 13 | print('maybe_error == raise == {}'.format(n)) 14 | raise e 15 | else: 16 | print('maybe_error == else == {}'.format(n)) 17 | finally: 18 | print('maybe_error == finally == {}'.format(n)) 19 | print('maybe_error == end == {}'.format(n)) 20 | 21 | 22 | def box(n, raise_it): 23 | try: 24 | maybe_error(n, raise_it) 25 | except Exception: 26 | print('box == except == {}'.format(n)) 27 | 28 | 29 | def main(): 30 | box(1, raise_it=False) 31 | box(0, raise_it=False) 32 | box(0, raise_it=True) 33 | 34 | 35 | if __name__ == '__main__': 36 | main() 37 | -------------------------------------------------------------------------------- /packages/schematics_snippets/validation.py: -------------------------------------------------------------------------------- 1 | from schematics.models import Model 2 | from schematics.types import StringType, IntType 3 | from schematics.exceptions import DataError 4 | 5 | 6 | class MyModel1(Model): 7 | foo = StringType() 8 | 9 | 10 | class MyModel2(Model): 11 | foo = StringType(required=True) 12 | 13 | 14 | class MyModel3(Model): 15 | foo = IntType() 16 | 17 | 18 | def validate_model(m): 19 | try: 20 | m.validate() 21 | except DataError as e: 22 | print(e) 23 | print(e.messages) 24 | 25 | 26 | def main(): 27 | m1 = MyModel1({'foo': 'a'}) 28 | m1.validate() 29 | 30 | m2 = MyModel1({}) 31 | m2.validate() 32 | 33 | m3 = MyModel2({}) 34 | # m3.validate() # schematics.exceptions.DataError: {"foo": ["This field is required."]} 35 | validate_model(m3) 36 | 37 | m4 = MyModel3({'foo': '4'}) 38 | print(m4, m4.foo) 39 | validate_model(m4) 40 | 41 | 42 | if __name__ == '__main__': 43 | main() 44 | -------------------------------------------------------------------------------- /packages/pydantic_sp/pep_484_types.py: -------------------------------------------------------------------------------- 1 | from typing import Dict, List, Optional, Union, Set 2 | 3 | from pydantic import BaseModel 4 | 5 | 6 | class Model(BaseModel): 7 | simple_list: list = None 8 | list_of_ints: List[int] = None 9 | 10 | simple_dict: dict = None 11 | dict_str_float: Dict[str, float] = None 12 | 13 | simple_set: set = None 14 | set_bytes: Set[bytes] = None 15 | 16 | str_or_bytes: Union[str, bytes] = None 17 | none_or_str: Optional[str] = None 18 | 19 | compound: Dict[Union[str, bytes], List[Set[int]]] = None 20 | 21 | 22 | def main(): 23 | print(Model(simple_list=['1', '2', '3']).simple_list) # > ['1', '2', '3'] 24 | print(Model(list_of_ints=['1', '2', '3']).list_of_ints) # > [1, 2, 3] 25 | 26 | print(Model(simple_dict={'a': 1, b'b': 2}).simple_dict) # > {'a': 1, b'b': 2} 27 | print(Model(dict_str_float={'a': 1, b'b': 2}).dict_str_float) # > {'a': 1.0, 'b': 2.0} 28 | 29 | 30 | if __name__ == '__main__': 31 | main() 32 | 33 | -------------------------------------------------------------------------------- /packages/redis_sp/redis_list.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import redis 3 | r = redis.StrictRedis(host='localhost', port=6379, db=0) 4 | list_key = 'my_list' 5 | list_key2 = 'my_list2' 6 | list_key3 = 'my_list3' 7 | 8 | 9 | def push(): 10 | print('===== push =====') 11 | r.rpush(list_key, 'd') 12 | r.rpush(list_key, 'e', 'f') 13 | r.lpush(list_key, 'c') 14 | r.lpush(list_key, 'b', 'a') 15 | print("r.lrange: {}".format(r.lrange(list_key, 0, -1))) 16 | print("r.llen: {}".format(r.llen(list_key))) 17 | print("r.llen: {}".format(r.llen(list_key3))) 18 | print(r.lrange(list_key, 0, -1)) 19 | r.lpush(list_key2, 'a') 20 | 21 | 22 | def pop(): 23 | print('===== pop =====') 24 | print(r.lpop(list_key2)) 25 | print(r.lpop(list_key2)) 26 | print(r.lpop(list_key3)) 27 | 28 | 29 | def main(): 30 | push() 31 | pop() 32 | r.delete(list_key) 33 | r.delete(list_key2) 34 | r.delete(list_key3) 35 | 36 | 37 | if __name__ == '__main__': 38 | main() 39 | -------------------------------------------------------------------------------- /utils/004-get-title-from-url/app.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import re 3 | import urllib.request 4 | from bs4 import BeautifulSoup 5 | 6 | 7 | def is_a_valid_url(s): 8 | regex = re.compile( 9 | r'^(?:http|ftp)s?://' # http:// or https:// 10 | r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|' # domain... 11 | r'localhost|' # localhost... 12 | r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' # ...or ip 13 | r'(?::\d+)?' # optional port 14 | r'(?:/?|[/?]\S+)$', re.IGNORECASE) 15 | return bool(regex.search(s)) 16 | 17 | 18 | def get_title_from_url(url): 19 | if not is_a_valid_url(url): 20 | return '' 21 | soup = BeautifulSoup(urllib.request.urlopen(url), 'html.parser') 22 | return soup.title.string 23 | 24 | 25 | def main(): 26 | url = 'https://mp.weixin.qq.com/s/uqPPe_YdG7c0JdSHPng_MQ' 27 | print(u"{}\n{}".format(get_title_from_url(url), url)) 28 | 29 | 30 | if __name__ == '__main__': 31 | main() 32 | -------------------------------------------------------------------------------- /basic/inhert_sp/multi_inhert.py: -------------------------------------------------------------------------------- 1 | class A: 2 | def say(self): 3 | print("A Hello:", self) 4 | 5 | 6 | class A2: 7 | pass 8 | 9 | 10 | class A3: 11 | pass 12 | 13 | 14 | # class B(A2, A): # TypeError: Cannot create a consistent method resolution order (MRO) for bases A2, A 15 | class B(A2): 16 | def eat(self): 17 | print("B Eating:", self) 18 | 19 | 20 | class C(A, A2, A3): 21 | def eat(self): 22 | print("C Eating:", self) 23 | 24 | 25 | class D(B, C): 26 | def say(self): 27 | super().say() 28 | print("D Hello:", self) 29 | 30 | def dinner(self): 31 | self.say() 32 | super().say() 33 | self.eat() 34 | super().eat() 35 | 36 | 37 | def main(): 38 | d = D() 39 | d.dinner() 40 | print(D.mro()) # D B C A A2 A3 41 | # 因为要保证顺序一致，所以 A2 还是放在了 A 后面 42 | 43 | 44 | if __name__ == '__main__': 45 | main() 46 | 47 | # https://medium.com/technology-nineleaps/python-method-resolution-order-4fd41d2fcc 48 | -------------------------------------------------------------------------------- /prjs/006-make-1-million-requests-with-python-aiohttp/s3_server.py: -------------------------------------------------------------------------------- 1 | import asyncio 2 | from datetime import datetime 3 | from aiohttp import web 4 | import random 5 | 6 | 7 | async def hello(request): 8 | # name = request.match_info.get("name", "foo") 9 | now = datetime.now().isoformat() 10 | delay = random.uniform(0.01, 0.8) 11 | await asyncio.sleep(delay) 12 | headers = {"content_type": "text/html", "delay": str(delay)} 13 | print(f"{now}: {request.path} delay: {delay}") 14 | body = "0.7777765323550566 0.6820758280410311 0.4466949910540329 0.4301714118515695 0.25021981851292885" \ 15 | "0.43939880915949237 0.5380599085488146 0.01086652573727398" 16 | response = web.Response(body=body, headers=headers) 17 | return response 18 | 19 | 20 | def main(): 21 | # 用一样的 seed 保证每次运行效果相同 22 | random.seed(1) 23 | app = web.Application() 24 | app.router.add_route("GET", "/{name}", hello) 25 | web.run_app(app) 26 | 27 | 28 | if __name__ == '__main__': 29 | main() 30 | -------------------------------------------------------------------------------- /packages/threading_snippets/thread_and_log.py: -------------------------------------------------------------------------------- 1 | # coding: utf-8 2 | import logging 3 | import sys 4 | from Queue import Queue 5 | from threading import Thread 6 | 7 | worker_size = 10 8 | queue_size = 10 9 | 10 | q = Queue(maxsize=queue_size) 11 | logging.basicConfig( 12 | stream=sys.stdout, # or filename='xxx.log', 13 | level=logging.INFO, 14 | format='%(asctime)s %(name)s %(levelname)s %(module)s %(funcName)s: %(message)s', 15 | datefmt='%Y-%m-%d %H:%M:%S' 16 | ) 17 | # log it 18 | 19 | 20 | def worker(): 21 | while True: 22 | item = q.get() 23 | logging.info(item) 24 | q.task_done() 25 | 26 | 27 | def main(): 28 | 29 | for i in range(worker_size): 30 | t = Thread(target=worker) 31 | t.daemon = True 32 | t.start() 33 | 34 | print('=== start work ===') 35 | for i in range(100): 36 | q.put(i) 37 | q.join() # block until all tasks are done 38 | print('=== end ===') 39 | 40 | 41 | if __name__ == '__main__': 42 | main() 43 | -------------------------------------------------------------------------------- /utils/007-add-params-to-url/app.py: -------------------------------------------------------------------------------- 1 | try: 2 | from urlparse import urlparse, urlunparse, parse_qsl 3 | from urllib import urlencode 4 | except: # For Python 3 5 | from urllib.parse import urlencode, urlparse, parse_qsl, urlunparse 6 | 7 | 8 | def add_params_to_url(url, params): 9 | url_parts = list(urlparse(url)) 10 | query = dict(parse_qsl(url_parts[4])) 11 | query.update(params) 12 | url_parts[4] = urlencode(query) 13 | return urlunparse(url_parts) 14 | 15 | 16 | def main(): 17 | url1 = 'http://example.com/search?q=question&t=tag#class1' 18 | url2 = 'http://example.com/' 19 | url3 = 'exp.io' 20 | params = {'lang': 'en', 'tag': 'python'} 21 | print(urlencode(params)) 22 | 23 | print(add_params_to_url(url1, params)) 24 | print(add_params_to_url(url2, params)) 25 | print(add_params_to_url(url3, params)) 26 | 27 | 28 | if __name__ == '__main__': 29 | main() 30 | 31 | 32 | # https://stackoverflow.com/questions/2506379/add-params-to-given-url-in-python 33 | -------------------------------------------------------------------------------- /packages/pil_sp/read_write_color.py: -------------------------------------------------------------------------------- 1 | from PIL import Image, ImageDraw 2 | 3 | 4 | def print_all_pixel_data(im): 5 | w, h = im.size 6 | for i in range(h): 7 | s = ','.join(map(str, [im.getpixel((j, i)) for j in range(w / 100)])) 8 | print(s) 9 | 10 | 11 | def draw_points(im): 12 | x, y = 10, 20 13 | im.putpixel((x, y), (255, 255, 255)) 14 | im.putpixel((x, y - 1), (255, 0, 0)) 15 | im.putpixel((x + 1, y), (0, 255, 0)) 16 | im.putpixel((x, y + 1), (0, 0, 255)) 17 | im.putpixel((x - 1, y), (0, 255, 0)) 18 | 19 | 20 | def draw_lines(im): 21 | draw = ImageDraw.Draw(im) 22 | draw.line((0, 0) + im.size, fill=128) 23 | draw.line((0, im.size[1], im.size[0], 0), fill=128, width=3) 24 | del draw 25 | 26 | 27 | def main(): 28 | im = Image.open("../_common_img/jump_jump.jpg") 29 | # print_all_pixel_data(im) 30 | # draw_points(im) 31 | draw_lines(im) 32 | im.save("../_common_img/jump_jump2.jpg") 33 | 34 | 35 | if __name__ == '__main__': 36 | main() 37 | -------------------------------------------------------------------------------- /builtin_packages/enum_sp/enum_for_error_code.py: -------------------------------------------------------------------------------- 1 | from enum import Enum, IntEnum 2 | 3 | 4 | class Color(Enum): 5 | RED = 1 6 | GREEN = 2 7 | BLUE = 3 8 | 9 | 10 | class Color2(IntEnum): 11 | RED = 1 12 | GREEN = 2 13 | BLUE = 3 14 | 15 | 16 | def main(): 17 | c_r = Color.RED 18 | print(c_r) 19 | print(c_r.name) 20 | print(c_r.value) 21 | # print(int(c_r)) # TypeError: int() argument must be a string, a bytes-like object or a number, not 'Color' 22 | 23 | c_r = Color2.RED 24 | print(c_r) 25 | print(c_r.name) 26 | print(c_r.value) 27 | print(int(c_r)) 28 | print(c_r.__dict__) 29 | 30 | # c_r = Color('1') # ValueError: '1' is not a valid Color 31 | # c_r = Color('RED') # ValueError: 'RED' is not a valid Color 32 | 33 | c_r = Color['RED'] 34 | print(c_r) 35 | # c_r = Color['1'] # KeyError: '1' 36 | # c_r = Color[1] # KeyError: 1 37 | 38 | c_r = Color(1) 39 | print(c_r) 40 | 41 | 42 | if __name__ == '__main__': 43 | main() 44 | -------------------------------------------------------------------------------- /builtin_packages/time_sp/execution_time_b.py: -------------------------------------------------------------------------------- 1 | import time 2 | from profilehooks import profile 3 | 4 | class SampleClass: 5 | 6 | @profile 7 | def silly_fibonacci_example(self, n): 8 | """Return the n-th Fibonacci number. 9 | 10 | This is a method rather rather than a function just to illustrate that 11 | you can use the 'profile' decorator on methods as well as global 12 | functions. 13 | 14 | Needless to say, this is a contrived example. 15 | """ 16 | if n < 1: 17 | raise ValueError('n must be >= 1, got %s' % n) 18 | if n in (1, 2): 19 | return 1 20 | else: 21 | return (self.silly_fibonacci_example(n - 1) + 22 | self.silly_fibonacci_example(n - 2)) 23 | 24 | 25 | @profile 26 | def f2(): 27 | time.sleep(1) 28 | 29 | 30 | if __name__ == '__main__': 31 | fib = SampleClass().silly_fibonacci_example 32 | print(fib(10)) 33 | print(f2()) 34 | 35 | # ref: http://mg.pov.lt/profilehooks/ 36 | -------------------------------------------------------------------------------- /prjs/012-draw-text-on-img/app.py: -------------------------------------------------------------------------------- 1 | from PIL import Image, ImageFont, ImageDraw 2 | 3 | data = [ 4 | { 5 | 'id': '3c1d4d3c-c3b4-4b81-804a-0f82b6f35e29', 6 | 'name': '坂田银八', 7 | }, 8 | { 9 | 'id': 'b46c36c6-9d84-49a6-a706-a8e216431184', 10 | 'name': '志村新八', 11 | } 12 | ] 13 | 14 | 15 | def main(bg_img_file_name, configs): 16 | for user in configs: 17 | draw_text_on_image(bg_img_file_name, user) 18 | 19 | 20 | def draw_text_on_image(bg_img_file_name, user): 21 | im = Image.open(bg_img_file_name) 22 | draw = ImageDraw.Draw(im) 23 | font = ImageFont.truetype("SourceHanSansCN-Regular.otf", 33) 24 | draw.text((190, 560), f"{user['name']}同学：", font=font, fill="#000") 25 | im.save(f"out/{user['id']}.png") 26 | 27 | 28 | def _create_bg_image(): 29 | im = Image.new("RGB", (750, 1132), "#FFF") 30 | im.save('bg.png') 31 | 32 | 33 | if __name__ == '__main__': 34 | main( 35 | bg_img_file_name='bg.png', 36 | configs=data, 37 | ) 38 | 39 | -------------------------------------------------------------------------------- /prjs/020-random-yuque-page-id/app.py: -------------------------------------------------------------------------------- 1 | import random 2 | 3 | 4 | def base36encode(number, alphabet='0123456789abcdefghijklmnopqrstuvwxyz'): 5 | """Converts an integer to a base36 string.""" 6 | if not isinstance(number, (int)): 7 | raise TypeError('number must be an integer') 8 | 9 | base36 = '' 10 | sign = '' 11 | 12 | if number < 0: 13 | sign = '-' 14 | number = -number 15 | 16 | if 0 <= number < len(alphabet): 17 | return sign + alphabet[number] 18 | 19 | while number != 0: 20 | number, i = divmod(number, len(alphabet)) 21 | base36 = alphabet[i] + base36 22 | 23 | return sign + base36 24 | 25 | 26 | def base36decode(number): 27 | return int(number, 36) 28 | 29 | 30 | def random_yuque_page_id(): 31 | return base36encode(number=random.randint(base36decode('100000'), base36decode('zzzzzz'))) # 让代码简单一点，不要 0 开头的 ID 了，不然还要处理补 0 的逻辑 32 | 33 | 34 | def main(): 35 | print(random_yuque_page_id()) 36 | 37 | 38 | if __name__ == '__main__': 39 | main() 40 | -------------------------------------------------------------------------------- /packages/wtforms_sp/hello_wtforms.py: -------------------------------------------------------------------------------- 1 | from wtforms import Form, StringField, validators 2 | from wtforms.validators import ValidationError 3 | 4 | 5 | def without_space(form, field): 6 | if ' ' in field.data: 7 | raise ValidationError('Username must without space') 8 | 9 | 10 | class UsernameForm(Form): 11 | username = StringField('Username', [validators.Length(min=5), without_space], default='test') 12 | 13 | 14 | def main(): 15 | form1 = UsernameForm() 16 | print('>>> form1') 17 | print(type(form1['username'])) 18 | print(form1.data) 19 | print(form1.username.data) 20 | print(form1.errors) 21 | print(form1.validate()) 22 | print(form1.errors) 23 | 24 | print('>>> form2') 25 | form2 = UsernameForm(username='Robert') 26 | print(form2.data) 27 | print(form2.validate()) 28 | print(form2.errors) 29 | 30 | print('>>> form3') 31 | form3 = UsernameForm(username='Foo Bar') 32 | form3.validate() 33 | print(form3.errors) 34 | 35 | 36 | if __name__ == '__main__': 37 | main() 38 | --------------------------------------------------------------------------------