├── .github
└── workflows
│ ├── CI.yml
│ └── pr-tests.yml
├── .gitignore
├── CONTRIBUTING.md
├── Cargo.lock
├── Cargo.toml
├── LICENSE.md
├── README.md
├── build.rs
├── docs
└── api.md
├── example.py
├── examples
├── batch
│ ├── .gitignore
│ ├── README.md
│ └── main.py
├── encryption
│ ├── .gitignore
│ ├── README.md
│ └── main.py
├── execute_script.py
├── local
│ ├── .gitignore
│ ├── README.md
│ └── main.py
├── memory
│ ├── README.md
│ └── main.py
├── remote
│ ├── README.md
│ └── main.py
├── remote_connect.py
├── sqlalchemy
│ ├── dialect.py
│ └── example.py
├── statements.sql
├── sync
│ ├── .gitignore
│ ├── README.md
│ └── main.py
├── sync_write.py
├── transaction
│ ├── .gitignore
│ ├── README.md
│ └── main.py
├── vector.py
└── vector
│ ├── .gitignore
│ ├── README.md
│ └── main.py
├── perf-libsql.py
├── perf-sqlite3.py
├── pyproject.toml
├── shell.nix
├── src
└── lib.rs
└── tests
└── test_suite.py
/.github/workflows/CI.yml:
--------------------------------------------------------------------------------
1 | name: CI
2 |
3 | on:
4 | push:
5 | branches:
6 | - main
7 | tags:
8 | - v*
9 | pull_request:
10 | workflow_dispatch:
11 |
12 | permissions:
13 | contents: read
14 |
15 | jobs:
16 | linux:
17 | runs-on: ubuntu-latest
18 | strategy:
19 | matrix:
20 | target: [x86_64]
21 | steps:
22 | - uses: actions/checkout@v3
23 | - uses: actions/setup-python@v4
24 | with:
25 | python-version: '3.10'
26 | - name: Build wheels
27 | uses: PyO3/maturin-action@v1
28 | with:
29 | target: ${{ matrix.target }}
30 | args: --release --out dist --find-interpreter
31 | sccache: 'true'
32 | manylinux: auto
33 | - name: Upload wheels
34 | uses: actions/upload-artifact@v4
35 | with:
36 | name: wheels-linux-${{ matrix.target }}
37 | path: dist
38 |
39 | macos-x86_64:
40 | runs-on: macos-13
41 | strategy:
42 | matrix:
43 | target: [x86_64]
44 | steps:
45 | - uses: actions/checkout@v3
46 | - uses: actions/setup-python@v4
47 | with:
48 | python-version: '3.10'
49 | - name: Build wheels
50 | uses: PyO3/maturin-action@v1
51 | env:
52 | CXX: clang++
53 | CC: clang
54 | with:
55 | target: ${{ matrix.target }}
56 | args: --release --out dist --find-interpreter
57 | sccache: 'true'
58 | - name: Upload wheels
59 | uses: actions/upload-artifact@v4
60 | with:
61 | name: wheels-macos-x86_64
62 | path: dist
63 |
64 | macos-arm64:
65 | runs-on: macos-13-xlarge
66 | strategy:
67 | matrix:
68 | target: [aarch64]
69 | steps:
70 | - uses: actions/checkout@v3
71 | - uses: actions/setup-python@v4
72 | env:
73 | CXX: clang++
74 | CC: clang
75 | with:
76 | python-version: '3.10'
77 | - name: Build wheels
78 | uses: PyO3/maturin-action@v1
79 | with:
80 | target: ${{ matrix.target }}
81 | args: --release --out dist --find-interpreter
82 | sccache: 'true'
83 | - name: Upload wheels
84 | uses: actions/upload-artifact@v4
85 | with:
86 | name: wheels-macos-arm64
87 | path: dist
88 |
89 | sdist:
90 | runs-on: ubuntu-latest
91 | steps:
92 | - uses: actions/checkout@v3
93 | - name: Build sdist
94 | uses: PyO3/maturin-action@v1
95 | with:
96 | command: sdist
97 | args: --out dist
98 | - name: Upload sdist
99 | uses: actions/upload-artifact@v4
100 | with:
101 | name: sdist
102 | path: dist
103 |
104 | release:
105 | name: Release
106 | runs-on: ubuntu-latest
107 | if: "startsWith(github.ref, 'refs/tags/')"
108 | needs: [linux, macos-arm64, macos-x86_64, sdist]
109 | steps:
110 | - uses: actions/download-artifact@v4
111 | with:
112 | pattern: wheels-*
113 | path: dist
114 | merge-multiple: true
115 | - uses: actions/download-artifact@v4
116 | with:
117 | name: sdist
118 | path: dist
119 | - name: Publish to PyPI
120 | uses: PyO3/maturin-action@v1
121 | env:
122 | MATURIN_PYPI_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
123 | with:
124 | command: upload
125 | args: --skip-existing dist/*
126 |
127 |
--------------------------------------------------------------------------------
/.github/workflows/pr-tests.yml:
--------------------------------------------------------------------------------
1 | name: pytest
2 |
3 | on:
4 | pull_request:
5 | branches:
6 | - main
7 |
8 | jobs:
9 | test:
10 | name: Run pytest
11 | runs-on: ubuntu-latest
12 |
13 | steps:
14 | - name: Checkout code
15 | uses: actions/checkout@v2
16 |
17 | - name: Set up Python
18 | uses: actions/setup-python@v2
19 | with:
20 | python-version: '>=3.10'
21 |
22 | - name: Set up cargo cache
23 | uses: actions/cache@v3
24 | continue-on-error: false
25 | with:
26 | path: |
27 | ~/.cargo/bin/
28 | ~/.cargo/registry/index/
29 | ~/.cargo/registry/cache/
30 | ~/.cargo/git/db/
31 | target/
32 | key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
33 | restore-keys: ${{ runner.os }}-cargo-
34 |
35 | - name: Buidl and run tests
36 | run: |
37 | python3 -m venv .env # maturin requires a virtualenv
38 | source .env/bin/activate
39 | pip3 install maturin pytest
40 | maturin develop
41 | pytest
42 |
--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | .env
2 | target
3 | *.db
4 | client_wal_index
5 | tests/__pycache__
6 | venv
7 | env
--------------------------------------------------------------------------------
/CONTRIBUTING.md:
--------------------------------------------------------------------------------
1 | # Contributing to libSQL Python SDK
2 |
3 | ## Developing
4 |
5 | Setup the development environment:
6 |
7 | ```sh
8 | python3 -m venv .env
9 | source .env/bin/activate
10 | pip3 install maturin pyperf pytest
11 | ```
12 |
13 | Or you can use NIX to drop you into a shell with everything installed
14 |
15 | ```
16 | nix-shell
17 | ```
18 |
19 | Build the development version and use it:
20 |
21 | ```
22 | maturin develop && python3 example.py
23 | ```
24 |
25 | Run the tests:
26 |
27 | ```sh
28 | pytest
29 | ```
30 |
31 | Run the libSQL benchmarks:
32 |
33 | ```sh
34 | python3 perf-libsql.py
35 | ```
36 |
37 | Run the SQLite benchmarks for comparison:
38 |
39 | ```sh
40 | python3 perf-sqlite3.py
41 | ```
42 |
--------------------------------------------------------------------------------
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2038 |
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2064 | "home",
2065 | "once_cell",
2066 | "rustix",
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2075 | "winapi-i686-pc-windows-gnu",
2076 | "winapi-x86_64-pc-windows-gnu",
2077 | ]
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2098 | ]
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2114 |
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2120 | dependencies = [
2121 | "windows_aarch64_gnullvm",
2122 | "windows_aarch64_msvc",
2123 | "windows_i686_gnu",
2124 | "windows_i686_gnullvm",
2125 | "windows_i686_msvc",
2126 | "windows_x86_64_gnu",
2127 | "windows_x86_64_gnullvm",
2128 | "windows_x86_64_msvc",
2129 | ]
2130 |
2131 | [[package]]
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2179 | [[package]]
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2184 | dependencies = [
2185 | "byteorder",
2186 | "zerocopy-derive",
2187 | ]
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2195 | "proc-macro2",
2196 | "quote",
2197 | "syn 2.0.72",
2198 | ]
2199 |
2200 | [[package]]
2201 | name = "zeroize"
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--------------------------------------------------------------------------------
/Cargo.toml:
--------------------------------------------------------------------------------
1 | [package]
2 | name = "libsql-python"
3 | version = "0.0.53"
4 | edition = "2021"
5 |
6 | [lib]
7 | name = "libsql_experimental"
8 | crate-type = ["cdylib"]
9 |
10 | [dependencies]
11 | pyo3 = "0.19.0"
12 | libsql = { version = "0.9.8", features = ["encryption"] }
13 | tokio = { version = "1.29.1", features = [ "rt-multi-thread" ] }
14 | tracing-subscriber = "0.3"
15 |
16 | [build-dependencies]
17 | version_check = "0.9.5"
18 | # used where logic has to be version/distribution specific, e.g. pypy
19 | pyo3-build-config = { version = "0.19.0" }
20 |
--------------------------------------------------------------------------------
/LICENSE.md:
--------------------------------------------------------------------------------
1 | MIT License
2 |
3 | Copyright 2023 the libSQL authors
4 |
5 | Permission is hereby granted, free of charge, to any person obtaining a copy of
6 | this software and associated documentation files (the "Software"), to deal in
7 | the Software without restriction, including without limitation the rights to
8 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
9 | the Software, and to permit persons to whom the Software is furnished to do so,
10 | subject to the following conditions:
11 |
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 |
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
17 | FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
18 | COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 |
2 |
3 | 
4 | Turso + Python (experimental)
5 |
6 |
7 |
8 | This package is experimental, which means it is not consider to be production grade. Furthermore, the package currently only supports Linux and macOS.
9 |
10 |
11 | SQLite for Production. Powered by libSQL.
12 |
13 |
14 |
15 | Turso ·
16 | Quickstart ·
17 | Examples ·
18 | Docs ·
19 | Discord ·
20 | Blog & Tutorials
21 |
22 |
23 |
24 |
25 | 
26 |
27 |
28 | 
29 |
30 |
31 |
32 | ---
33 |
34 | ## Documentation
35 |
36 | 1. [Turso Quickstart](https://docs.turso.tech/quickstart) — Learn how create and connect your first database.
37 | 2. [SDK Quickstart](https://docs.turso.tech/sdk/python/quickstart) — Learn how to install and execute queries using the libSQL client.
38 | 3. [SDK Reference](https://docs.turso.tech/sdk/python/reference) — Dive deeper with the libSQL SDK reference and examples.
39 |
40 | ### What is Turso?
41 |
42 | [Turso](https://turso.tech) is a SQLite-compatible database built on [libSQL](https://docs.turso.tech/libsql), the Open Contribution fork of SQLite. It enables scaling to hundreds of thousands of databases per organization and supports replication to any location, including your own servers, for microsecond-latency access.
43 |
44 | Learn more about what you can do with Turso:
45 |
46 | - [Embedded Replicas](https://docs.turso.tech/features/embedded-replicas)
47 | - [Platform API](https://docs.turso.tech/features/platform-api)
48 | - [Branching](https://docs.turso.tech/features/branching)
49 | - [Point-in-Time Recovery](https://docs.turso.tech/features/point-in-time-recovery)
50 |
--------------------------------------------------------------------------------
/build.rs:
--------------------------------------------------------------------------------
1 | pub fn main() {
2 | pyo3_build_config::use_pyo3_cfgs();
3 | }
4 |
--------------------------------------------------------------------------------
/docs/api.md:
--------------------------------------------------------------------------------
1 | # `libsql`: SQLite compatible interface for libSQL
2 |
3 | ## Module functions
4 |
5 | ### connect(database) ⇒ Connection
6 |
7 | Creates a new database connection.
8 |
9 | | Param | Type | Description |
10 | | -------- | ------------------- | ------------------------- |
11 | | database | string | Path to the database file |
12 |
13 | ## `Connection` objects
14 |
15 | ### cursor() ⇒ Cursor
16 |
17 | Creates a new database cursor.
18 |
19 | ### blobopen()
20 |
21 | Unimplemented.
22 |
23 | ### commit()
24 |
25 | Commits the current transaction and starts a new one.
26 |
27 | ### rollback()
28 |
29 | Rolls back the current transaction and starts a new one.
30 |
31 | ### close()
32 |
33 | Closes the database connection.
34 |
35 | ### execute(sql, parameters=())
36 |
37 | Create a new cursor object and executes the SQL statement.
38 |
39 | ### executemany(sql, parameters)
40 |
41 | Create a new cursor object and Execute the SQL statement for every item in `parameters` array.
42 |
43 | | Param | Type | Description |
44 | | ---------- | ------------------- | ---------------------------------------------- |
45 | | sql | string | Path to the database file |
46 | | parameters | array | Array of parameter tuples to execute SQL with. |
47 |
48 | ### executescript()
49 |
50 | Unimplemented.
51 |
52 | ### create_function()
53 |
54 | Unimplemented.
55 |
56 | ### create_aggregate()
57 |
58 | Unimplemented.
59 |
60 | ### create_window_function()
61 |
62 | Unimplemented.
63 |
64 | ### create_collation()
65 |
66 | Unimplemented.
67 |
68 | ### interrupt()
69 |
70 | Unimplemented.
71 |
72 | ### set_authorizer()
73 |
74 | Unimplemented.
75 |
76 | ### set_progress_handler()
77 |
78 | Unimplemented.
79 |
80 | ### set_trace_callback()
81 |
82 | Unimplemented.
83 |
84 | ### enable_load_extension()
85 |
86 | Unimplemented.
87 |
88 | ### load_extension()
89 |
90 | Unimplemented.
91 |
92 | ### iterdump()
93 |
94 | Unimplemented.
95 |
96 | ### backup()
97 |
98 | Unimplemented.
99 |
100 | ### getlimit()
101 |
102 | Unimplemented.
103 |
104 | ### setlimit()
105 |
106 | Unimplemented.
107 |
108 | ### getconfig()
109 |
110 | Unimplemented.
111 |
112 | ### setconfig()
113 |
114 | Unimplemented.
115 |
116 | ### serialize()
117 |
118 | Unimplemented.
119 |
120 | ### deserialize()
121 |
122 | Unimplemented.
123 |
124 | ### autocommit
125 |
126 | Starting from Python 3.12, the autocommit property is supported, controlling PEP 249 transaction handling behavior. By default, autocommit is set to LEGACY_TRANSACTION_CONTROL, but this will change to False in a future Python release. For more details, refer to [Connection.autocommit](https://docs.python.org/3/library/sqlite3.html#sqlite3.Connection.autocommit) in the official Python documentation.
127 |
128 | ### in_transaction
129 |
130 | Returns `True` if there's an active transaction with uncommitted changes; otherwise returns `False`.
131 |
132 | ### isolation_level
133 |
134 | Transaction handling mode configuration. If `isolation_level` is set to `"DEFERRED"`, `"IMMEDIATE"`, or `"EXCLUSIVE"`, transactions begin implicitly, but need to be committed manually. If `isolation_level` is set to `None`, then database is in auto-commit mode, executing each statement in its own transaction.
135 |
136 | ### row_factory
137 |
138 | Unimplemented.
139 |
140 | ### text_factory
141 |
142 | Unimplemented.
143 |
144 | ### total_changes
145 |
146 | Unimplemented.
147 |
148 | ## `Cursor` objects
149 |
150 | ### execute(sql, parameters=())
151 |
152 | Execute one SQL statement.
153 |
154 | ### executemany(sql, parameters)
155 |
156 | Execute the SQL statement for every item in `parameters` array.
157 |
158 | | Param | Type | Description |
159 | | ---------- | ------------------- | ---------------------------------------------- |
160 | | sql | string | Path to the database file |
161 | | parameters | array | Array of parameter tuples to execute SQL with. |
162 |
163 | ### executescript()
164 |
165 | Unimplemented.
166 |
167 | ### fetchone()
168 |
169 | Return next row in result set.
170 |
171 | ### fetchmany(size = cursor.arraysize)
172 |
173 | Return `size` next rows in result set. If there are no more rows left, returns an empty list.
174 |
175 | ### fetchall()
176 |
177 | Return all rows in result set.
178 |
179 | ### close()
180 |
181 | Unimplemented.
182 |
183 | ### setinputsizes()
184 |
185 | Unimplemented.
186 |
187 | ### setoutputsize()
188 |
189 | Unimplemented.
190 |
191 | ### arraysize
192 |
193 | The number of rows returned by `fetchmany()` by default.
194 |
195 | ### connection
196 |
197 | Unimplemented.
198 |
199 | ### description
200 |
201 | Column names of the query that was run last.
202 |
203 | ### lastrowid
204 |
205 | Returns the row ID of the last inserted row.
206 |
207 | ### rowcount
208 |
209 | Returns the number of rows changed by `INSERT`, `UPDATE`, `DELETE`, and `REPLACE` statements. For other types of statements, returns -1.
210 |
211 | ### row_factory
212 |
213 | Unimplemented.
214 |
215 |
--------------------------------------------------------------------------------
/example.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental
2 |
3 | con = libsql_experimental.connect("hello.db", sync_url="http://localhost:8080",
4 | auth_token="")
5 |
6 | con.sync()
7 |
8 | cur = con.cursor()
9 |
10 | cur.execute("CREATE TABLE IF NOT EXISTS users (id INTEGER, email TEXT);")
11 | cur.execute("INSERT INTO users VALUES (1, 'penberg@iki.fi')")
12 |
13 | print(cur.execute("SELECT * FROM users").fetchone())
14 |
--------------------------------------------------------------------------------
/examples/batch/.gitignore:
--------------------------------------------------------------------------------
1 | local.db-journal
2 |
--------------------------------------------------------------------------------
/examples/batch/README.md:
--------------------------------------------------------------------------------
1 | # Local
2 |
3 | This example demonstrates how to use libSQL to execute a batch of SQL statements.
4 |
5 | ## Install Dependencies
6 |
7 | ```bash
8 | pip install libsql-experimental
9 | ```
10 |
11 | ## Running
12 |
13 | Execute the example:
14 |
15 | ```bash
16 | python3 main.py
17 | ```
18 |
19 | This will create a local database, execute a batch of SQL statements (creating tables, inserting data, etc.), and then query the results.
20 |
--------------------------------------------------------------------------------
/examples/batch/main.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 |
3 | conn = libsql.connect("local.db")
4 | cur = conn.cursor()
5 |
6 | cur.executescript(
7 | """
8 | DROP TABLE IF EXISTS users;
9 | CREATE TABLE users (id INTEGER, name TEXT);
10 | INSERT INTO users VALUES (1, 'first@example.org');
11 | INSERT INTO users VALUES (2, 'second@example.org');
12 | INSERT INTO users VALUES (3, 'third@example.org');
13 | """
14 | )
15 |
16 | print(conn.execute("select * from users").fetchall())
17 |
--------------------------------------------------------------------------------
/examples/encryption/.gitignore:
--------------------------------------------------------------------------------
1 | local.db-journal
2 |
--------------------------------------------------------------------------------
/examples/encryption/README.md:
--------------------------------------------------------------------------------
1 | # Local
2 |
3 | This example demonstrates how to create and use an encrypted SQLite database with libSQL.
4 |
5 | ## Install Dependencies
6 |
7 | ```bash
8 | pip install libsql-experimental
9 | ```
10 |
11 | ## Running
12 |
13 | Execute the example:
14 |
15 | ```bash
16 | python3 main.py
17 | ```
18 |
19 | This will setup an encrypted SQLite database, execute a batch of SQL statements, and then query the results.
20 |
--------------------------------------------------------------------------------
/examples/encryption/main.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 |
3 | # You should set the ENCRYPTION_KEY in a environment variable
4 | # For demo purposes, we're using a fixed key
5 | encryption_key= "my-safe-encryption-key";
6 |
7 | conn = libsql.connect("local.db", encryption_key=encryption_key)
8 | cur = conn.cursor()
9 |
10 | conn.execute("CREATE TABLE IF NOT EXISTS users (name TEXT);")
11 | conn.execute("INSERT INTO users VALUES ('first@example.com');")
12 | conn.execute("INSERT INTO users VALUES ('second@example.com');")
13 | conn.execute("INSERT INTO users VALUES ('third@example.com');")
14 |
15 |
16 | print(conn.execute("select * from users").fetchall())
17 |
--------------------------------------------------------------------------------
/examples/execute_script.py:
--------------------------------------------------------------------------------
1 | """
2 | A short example showing how to execute a script containing a bunch of sql statements.
3 | """
4 | import os
5 |
6 | import libsql_experimental as libsql
7 |
8 | def execute_script(conn, file_path: os.PathLike):
9 | with open(file_path, 'r') as file:
10 | script = file.read()
11 |
12 | conn.executescript(script)
13 | conn.commit()
14 |
15 | conn = libsql.connect(':memory:')
16 | script_path = os.path.join(os.path.dirname(__file__), 'statements.sql')
17 | execute_script(conn, script_path)
18 |
19 | # Retrieve the data from the 'users' table and print it
20 | cursor = conn.cursor()
21 | cursor.execute("SELECT * FROM users")
22 | rows = cursor.fetchall()
23 | print("Data in the 'users' table:")
24 | for row in rows:
25 | print(row)
26 |
--------------------------------------------------------------------------------
/examples/local/.gitignore:
--------------------------------------------------------------------------------
1 | local.db-journal
2 |
--------------------------------------------------------------------------------
/examples/local/README.md:
--------------------------------------------------------------------------------
1 | # Local
2 |
3 | This example demonstrates how to use libSQL with a local SQLite file.
4 |
5 | ## Install Dependencies
6 |
7 | ```bash
8 | pip install libsql-experimental
9 | ```
10 |
11 | ## Running
12 |
13 | Execute the example:
14 |
15 | ```bash
16 | python3 main.py
17 | ```
18 |
19 | This will connect to a local SQLite, insert some data, and query it.
20 |
--------------------------------------------------------------------------------
/examples/local/main.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 |
3 | conn = libsql.connect("local.db")
4 | cur = conn.cursor()
5 |
6 | conn.execute("CREATE TABLE IF NOT EXISTS users (name TEXT);")
7 | conn.execute("INSERT INTO users VALUES ('first@example.com');")
8 | conn.execute("INSERT INTO users VALUES ('second@example.com');")
9 | conn.execute("INSERT INTO users VALUES ('third@example.com');")
10 |
11 |
12 | print(conn.execute("select * from users").fetchall())
13 |
--------------------------------------------------------------------------------
/examples/memory/README.md:
--------------------------------------------------------------------------------
1 | # Local
2 |
3 | This example demonstrates how to use libSQL with an in-memory SQLite database.
4 |
5 | ## Install Dependencies
6 |
7 | ```bash
8 | pip install libsql-experimental
9 | ```
10 |
11 | ## Running
12 |
13 | Execute the example:
14 |
15 | ```bash
16 | python3 main.py
17 | ```
18 |
19 | This will create an in-memory SQLite database, insert some data, and then query the results.
20 |
--------------------------------------------------------------------------------
/examples/memory/main.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 |
3 | conn = libsql.connect(":memory:")
4 | cur = conn.cursor()
5 |
6 | conn.execute("CREATE TABLE IF NOT EXISTS users (name TEXT);")
7 | conn.execute("INSERT INTO users VALUES ('first@example.com');")
8 | conn.execute("INSERT INTO users VALUES ('second@example.com');")
9 | conn.execute("INSERT INTO users VALUES ('third@example.com');")
10 |
11 |
12 | print(conn.execute("select * from users").fetchall())
13 |
--------------------------------------------------------------------------------
/examples/remote/README.md:
--------------------------------------------------------------------------------
1 | # Local
2 |
3 | This example demonstrates how to use libSQL with a remote database.
4 |
5 | ## Install Dependencies
6 |
7 | ```bash
8 | pip install libsql-experimental
9 | ```
10 |
11 | ## Running
12 |
13 | Execute the example:
14 |
15 | ```bash
16 | TURSO_DATABASE_URL="..." TURSO_AUTH_TOKEN="..." python3 main.py
17 | ```
18 |
19 | This will connect to a remote database, insert some data, and query it.
20 |
--------------------------------------------------------------------------------
/examples/remote/main.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 | import os
3 |
4 | url = os.getenv("TURSO_DATABASE_URL")
5 | auth_token = os.getenv("TURSO_AUTH_TOKEN")
6 |
7 | conn = libsql.connect(url, auth_token=auth_token)
8 | cur = conn.cursor()
9 |
10 |
11 | conn.execute("DROP TABLE IF EXISTS users;")
12 | conn.execute("CREATE TABLE IF NOT EXISTS users (name TEXT);")
13 | conn.execute("INSERT INTO users VALUES ('first@example.com');")
14 | conn.execute("INSERT INTO users VALUES ('second@example.com');")
15 | conn.execute("INSERT INTO users VALUES ('third@example.com');")
16 |
17 | conn.commit()
18 |
19 | print(conn.execute("select * from users").fetchall())
20 |
--------------------------------------------------------------------------------
/examples/remote_connect.py:
--------------------------------------------------------------------------------
1 | """
2 | A short example showing how to connect to a remote libsql or Turso database
3 |
4 | Set the LIBSQL_URL and LIBSQL_AUTH_TOKEN environment variables to point to a database.
5 | """
6 | import os
7 |
8 | import libsql_experimental as libsql
9 |
10 | print(F"connecting to {os.getenv('LIBSQL_URL')}")
11 | conn = libsql.connect(database=os.getenv('LIBSQL_URL'),
12 | auth_token=os.getenv("LIBSQL_AUTH_TOKEN"))
13 | conn.execute("CREATE TABLE IF NOT EXISTS users (id INTEGER);")
14 | conn.execute("INSERT INTO users(id) VALUES (10);")
15 | conn.commit()
16 |
17 | print(conn.execute("select * from users").fetchall())
18 |
--------------------------------------------------------------------------------
/examples/sqlalchemy/dialect.py:
--------------------------------------------------------------------------------
1 | import os
2 | import urllib.parse
3 |
4 | from sqlalchemy import util
5 | from sqlalchemy.dialects import registry as _registry
6 | from sqlalchemy.dialects.sqlite.pysqlite import SQLiteDialect_pysqlite
7 |
8 | __version__ = "0.1.0-pre"
9 |
10 | _registry.register(
11 | "sqlite.libsql", "sqlalchemy_libsql", "SQLiteDialect_libsql"
12 | )
13 |
14 |
15 | def _build_connection_url(url, query, secure):
16 | # sorting of keys is for unit test support
17 | query_str = urllib.parse.urlencode(sorted(query.items()))
18 |
19 | if not url.host:
20 | if query_str:
21 | return f"{url.database}?{query_str}"
22 | return url.database
23 | elif secure: # yes, pop to remove
24 | scheme = "wss"
25 | else:
26 | scheme = "ws"
27 |
28 | if url.username and url.password:
29 | netloc = f"{url.username}:{url.password}@{url.host}"
30 | elif url.username:
31 | netloc = f"{url.username}@{url.host}"
32 | else:
33 | netloc = url.host
34 |
35 | if url.port:
36 | netloc += f":{url.port}"
37 |
38 | return urllib.parse.urlunsplit(
39 | (
40 | scheme,
41 | netloc,
42 | url.database or "",
43 | query_str,
44 | "", # fragment
45 | )
46 | )
47 |
48 |
49 | class SQLiteDialect_libsql(SQLiteDialect_pysqlite):
50 | driver = "libsql"
51 | # need to be set explicitly
52 | supports_statement_cache = SQLiteDialect_pysqlite.supports_statement_cache
53 |
54 | @classmethod
55 | def import_dbapi(cls):
56 | import libsql_experimental as libsql
57 |
58 | return libsql
59 |
60 | def on_connect(self):
61 | import libsql_experimental as libsql
62 |
63 | sqlite3_connect = super().on_connect()
64 |
65 | def connect(conn):
66 | # LibSQL: there is no support for create_function()
67 | if isinstance(conn, Connection):
68 | return
69 | return sqlite3_connect(conn)
70 |
71 | return connect
72 |
73 | def create_connect_args(self, url):
74 | pysqlite_args = (
75 | ("uri", bool),
76 | ("timeout", float),
77 | ("isolation_level", str),
78 | ("detect_types", int),
79 | ("check_same_thread", bool),
80 | ("cached_statements", int),
81 | ("secure", bool), # LibSQL extra, selects between ws and wss
82 | )
83 | opts = url.query
84 | libsql_opts = {}
85 | for key, type_ in pysqlite_args:
86 | util.coerce_kw_type(opts, key, type_, dest=libsql_opts)
87 |
88 | if url.host:
89 | libsql_opts["uri"] = True
90 |
91 | if libsql_opts.get("uri", False):
92 | uri_opts = dict(opts)
93 | # here, we are actually separating the parameters that go to
94 | # sqlite3/pysqlite vs. those that go the SQLite URI. What if
95 | # two names conflict? again, this seems to be not the case right
96 | # now, and in the case that new names are added to
97 | # either side which overlap, again the sqlite3/pysqlite parameters
98 | # can be passed through connect_args instead of in the URL.
99 | # If SQLite native URIs add a parameter like "timeout" that
100 | # we already have listed here for the python driver, then we need
101 | # to adjust for that here.
102 | for key, type_ in pysqlite_args:
103 | uri_opts.pop(key, None)
104 |
105 | secure = libsql_opts.pop("secure", False)
106 | connect_url = _build_connection_url(url, uri_opts, secure)
107 | else:
108 | connect_url = url.database or ":memory:"
109 | if connect_url != ":memory:":
110 | connect_url = os.path.abspath(connect_url)
111 |
112 | libsql_opts.setdefault(
113 | "check_same_thread", not self._is_url_file_db(url)
114 | )
115 |
116 | return ([connect_url], libsql_opts)
117 |
118 |
119 | dialect = SQLiteDialect_libsql
120 |
--------------------------------------------------------------------------------
/examples/sqlalchemy/example.py:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env python3
2 |
3 | import dialect
4 |
5 | from typing import List
6 | from typing import Optional
7 | from sqlalchemy import ForeignKey
8 | from sqlalchemy import String
9 | from sqlalchemy.orm import DeclarativeBase
10 | from sqlalchemy.orm import Mapped
11 | from sqlalchemy.orm import mapped_column
12 | from sqlalchemy.orm import relationship
13 |
14 | class Base(DeclarativeBase):
15 | pass
16 |
17 | class User(Base):
18 | __tablename__ = "user_account"
19 | id: Mapped[int] = mapped_column(primary_key=True)
20 | name: Mapped[str] = mapped_column(String(30))
21 | fullname: Mapped[Optional[str]]
22 | addresses: Mapped[List["Address"]] = relationship(
23 | back_populates="user", cascade="all, delete-orphan"
24 | )
25 | def __repr__(self) -> str:
26 | return f"User(id={self.id!r}, name={self.name!r}, fullname={self.fullname!r})"
27 |
28 | class Address(Base):
29 | __tablename__ = "address"
30 | id: Mapped[int] = mapped_column(primary_key=True)
31 | email_address: Mapped[str]
32 | user_id: Mapped[int] = mapped_column(ForeignKey("user_account.id"))
33 | user: Mapped["User"] = relationship(back_populates="addresses")
34 | def __repr__(self) -> str:
35 | return f"Address(id={self.id!r}, email_address={self.email_address!r})"
36 |
37 | from sqlalchemy import create_engine
38 | engine = create_engine("sqlite+libsql://", echo=True)
39 |
40 | Base.metadata.create_all(engine)
41 |
42 | from sqlalchemy.orm import Session
43 |
44 | with Session(engine) as session:
45 | spongebob = User(
46 | name="spongebob",
47 | fullname="Spongebob Squarepants",
48 | addresses=[Address(email_address="spongebob@sqlalchemy.org")],
49 | )
50 | sandy = User(
51 | name="sandy",
52 | fullname="Sandy Cheeks",
53 | addresses=[
54 | Address(email_address="sandy@sqlalchemy.org"),
55 | Address(email_address="sandy@squirrelpower.org"),
56 | ],
57 | )
58 | patrick = User(name="patrick", fullname="Patrick Star")
59 | session.add_all([spongebob, sandy, patrick])
60 | session.commit()
61 |
62 | from sqlalchemy import select
63 |
64 | session = Session(engine)
65 |
66 | stmt = select(User).where(User.name.in_(["spongebob", "sandy"]))
67 |
68 | for user in session.scalars(stmt):
69 | print(user)
70 |
--------------------------------------------------------------------------------
/examples/statements.sql:
--------------------------------------------------------------------------------
1 | CREATE TABLE IF NOT EXISTS users (
2 | id INTEGER PRIMARY KEY,
3 | name TEXT,
4 | age INTEGER
5 | );
6 |
7 | INSERT INTO users (name, age) VALUES ('Alice', 25);
8 | INSERT INTO users (name, age) VALUES ('Bob', 30);
9 |
10 | SELECT * FROM users;
11 |
12 | UPDATE users SET age = 26 WHERE name = 'Alice';
13 |
14 | SELECT * FROM users;
15 |
--------------------------------------------------------------------------------
/examples/sync/.gitignore:
--------------------------------------------------------------------------------
1 | local.db*
2 |
--------------------------------------------------------------------------------
/examples/sync/README.md:
--------------------------------------------------------------------------------
1 | # Local
2 |
3 | This example demonstrates how to use libSQL with a synced database (local file synced with a remote database).
4 |
5 | ## Install Dependencies
6 |
7 | ```bash
8 | pip install libsql-experimental
9 | ```
10 |
11 | ## Running
12 |
13 | Execute the example:
14 |
15 | ```bash
16 | TURSO_DATABASE_URL="..." TURSO_AUTH_TOKEN="..." python3 main.py
17 | ```
18 |
19 | This will create a local database file that syncs with a remote database, insert some data, and query it.
20 |
--------------------------------------------------------------------------------
/examples/sync/main.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 | import os
3 |
4 | url = os.getenv("TURSO_DATABASE_URL")
5 | auth_token = os.getenv("TURSO_AUTH_TOKEN")
6 |
7 | conn = libsql.connect("local.db", sync_url=url, auth_token=auth_token)
8 | conn.sync()
9 |
10 | cur = conn.cursor()
11 |
12 | conn.execute("DROP TABLE IF EXISTS users;")
13 | conn.execute("CREATE TABLE IF NOT EXISTS users (name TEXT);")
14 | conn.execute("INSERT INTO users VALUES ('first@example.com');")
15 | conn.execute("INSERT INTO users VALUES ('second@example.com');")
16 | conn.execute("INSERT INTO users VALUES ('third@example.com');")
17 |
18 |
19 | print(conn.execute("select * from users").fetchall())
20 |
--------------------------------------------------------------------------------
/examples/sync_write.py:
--------------------------------------------------------------------------------
1 | """
2 | A short example showing how to create an embedded replica, make writes and then read them
3 |
4 | Set the LIBSQL_URL and LIBSQL_AUTH_TOKEN environment variables to point to a database.
5 | """
6 | import os
7 |
8 | import libsql_experimental as libsql
9 |
10 | print(F"syncing with {os.getenv('LIBSQL_URL')}")
11 | conn = libsql.connect("hello.db", sync_url=os.getenv("LIBSQL_URL"),
12 | auth_token=os.getenv("LIBSQL_AUTH_TOKEN"))
13 | conn.execute("CREATE TABLE IF NOT EXISTS users (id INTEGER);")
14 | conn.execute("INSERT INTO users(id) VALUES (1);")
15 | conn.commit()
16 | conn.sync()
17 |
18 | print(conn.execute("select * from users").fetchall())
19 |
--------------------------------------------------------------------------------
/examples/transaction/.gitignore:
--------------------------------------------------------------------------------
1 | local.db-journal
2 |
--------------------------------------------------------------------------------
/examples/transaction/README.md:
--------------------------------------------------------------------------------
1 | # Local
2 |
3 | This example demonstrates how to create and use an encrypted SQLite database with libSQL.
4 |
5 | ## Install Dependencies
6 |
7 | ```bash
8 | pip install libsql-experimental
9 | ```
10 |
11 | ## Running
12 |
13 | Execute the example:
14 |
15 | ```bash
16 | python3 main.py
17 | ```
18 |
19 | This example will:
20 |
21 | 1. Create a new table called `users`.
22 | 2. Start a transaction.
23 | 3. Insert multiple users within the transaction.
24 | 4. Demonstrate how to rollback a transaction.
25 | 5. Start another transaction.
26 | 6. Insert more users and commit the transaction.
27 | 7. Query and display the final state of the `users` table.
28 |
--------------------------------------------------------------------------------
/examples/transaction/main.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 |
3 | conn = libsql.connect("local.db")
4 | cur = conn.cursor()
5 |
6 | conn.execute("DROP TABLE IF EXISTS users")
7 | conn.execute("CREATE TABLE users (name TEXT);")
8 | conn.execute("INSERT INTO users VALUES ('first@example.com');")
9 | conn.execute("INSERT INTO users VALUES ('second@example.com');")
10 |
11 | conn.rollback()
12 |
13 | conn.execute("INSERT INTO users VALUES ('third@example.com');")
14 |
15 | print(conn.execute("select * from users").fetchall())
16 |
--------------------------------------------------------------------------------
/examples/vector.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 |
3 | conn = libsql.connect("vector.db")
4 |
5 | conn.execute(
6 | "CREATE TABLE movies (title TEXT, year INT, embedding F32_BLOB(3))")
7 | conn.execute("CREATE INDEX movies_idx ON movies (libsql_vector_idx(embedding))")
8 |
9 | conn.execute("""
10 | INSERT INTO movies (title, year, embedding) VALUES
11 | ('Napoleon', 2023, vector('[1,2,3]')),
12 | ('Black Hawk Down', 2001, vector('[10,11,12]')),
13 | ('Gladiator', 2000, vector('[7,8,9]')),
14 | ('Blade Runner', 1982, vector('[4,5,6]'));
15 | """)
16 |
17 | cur = conn.execute("""
18 | SELECT title, year
19 | FROM vector_top_k('movies_idx', '[4,5,6]', 3)
20 | JOIN movies ON movies.rowid = id
21 | """)
22 |
23 | print(cur.fetchall())
24 |
--------------------------------------------------------------------------------
/examples/vector/.gitignore:
--------------------------------------------------------------------------------
1 | local.db-journal
2 |
--------------------------------------------------------------------------------
/examples/vector/README.md:
--------------------------------------------------------------------------------
1 | # Local
2 |
3 | This example demonstrates how to use libSQL vector search with a local database.
4 |
5 | ## Install Dependencies
6 |
7 | ```bash
8 | pip install libsql-experimental
9 | ```
10 |
11 | ## Running
12 |
13 | Execute the example:
14 |
15 | ```bash
16 | python3 main.py
17 | ```
18 |
19 | This will setup a local SQLite database, insert some data, and then query the results using the vector similarity search function.
20 |
--------------------------------------------------------------------------------
/examples/vector/main.py:
--------------------------------------------------------------------------------
1 | import libsql_experimental as libsql
2 |
3 | conn = libsql.connect("local.db")
4 |
5 | conn.execute("DROP TABLE IF EXISTS movies")
6 | conn.execute("CREATE TABLE IF NOT EXISTS movies (title TEXT, year INT, embedding F32_BLOB(3))")
7 | conn.execute("CREATE INDEX movies_idx ON movies (libsql_vector_idx(embedding))")
8 | conn.execute("INSERT INTO movies (title, year, embedding) VALUES ('Napoleon', 2023, vector32('[1,2,3]')), ('Black Hawk Down', 2001, vector32('[10,11,12]')), ('Gladiator', 2000, vector32('[7,8,9]')), ('Blade Runner', 1982, vector32('[4,5,6]'))")
9 |
10 | print(conn.execute("SELECT title, year FROM vector_top_k('movies_idx', '[4,5,6]', 3) JOIN movies ON movies.rowid = id").fetchall())
11 |
--------------------------------------------------------------------------------
/perf-libsql.py:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env python3
2 | import libsql_experimental
3 | import pyperf
4 | import time
5 |
6 | con = libsql_experimental.connect(":memory:")
7 | cur = con.cursor()
8 |
9 | def func():
10 | res = cur.execute("SELECT 1")
11 | res.fetchone()
12 |
13 | runner = pyperf.Runner()
14 | runner.bench_func('execute SELECT 1', func)
15 |
--------------------------------------------------------------------------------
/perf-sqlite3.py:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env python3
2 | import pyperf
3 | import sqlite3
4 | import time
5 |
6 | con = sqlite3.connect(":memory:")
7 | cur = con.cursor()
8 |
9 | def func():
10 | res = cur.execute("SELECT 1")
11 | res.fetchone()
12 |
13 | runner = pyperf.Runner()
14 | runner.bench_func('execute SELECT 1', func)
15 |
--------------------------------------------------------------------------------
/pyproject.toml:
--------------------------------------------------------------------------------
1 | [build-system]
2 | requires = ["maturin>=1.1,<2.0"]
3 | build-backend = "maturin"
4 |
5 | [project]
6 | name = "libsql-experimental"
7 | version = "0.0.53"
8 | requires-python = ">=3.7"
9 | classifiers = [
10 | "Programming Language :: Rust",
11 | "Programming Language :: Python :: Implementation :: CPython",
12 | "Programming Language :: Python :: Implementation :: PyPy",
13 | ]
14 |
15 |
16 | [tool.maturin]
17 | features = ["pyo3/extension-module"]
18 |
--------------------------------------------------------------------------------
/shell.nix:
--------------------------------------------------------------------------------
1 | { pkgs ? import { } }:
2 | (pkgs.buildFHSUserEnv {
3 | name = "pipzone";
4 | targetPkgs = pkgs: (with pkgs; [
5 | python312
6 | python312Packages.pip
7 | python312Packages.virtualenv
8 | python312Packages.pytest
9 | python312Packages.pyperf
10 | maturin
11 | ]);
12 | runScript = "bash";
13 | profile = ''
14 | virtualenv .venv
15 | source .venv/bin/activate
16 | '';
17 | }).env
18 |
--------------------------------------------------------------------------------
/src/lib.rs:
--------------------------------------------------------------------------------
1 | use ::libsql as libsql_core;
2 | use pyo3::create_exception;
3 | use pyo3::exceptions::PyValueError;
4 | use pyo3::prelude::*;
5 | use pyo3::types::{PyList, PyTuple};
6 | use std::cell::{OnceCell, RefCell};
7 | use std::sync::{Arc, OnceLock};
8 | use tokio::runtime::{Handle, Runtime};
9 |
10 | const LEGACY_TRANSACTION_CONTROL: i32 = -1;
11 |
12 | fn rt() -> Handle {
13 | static RT: OnceLock = OnceLock::new();
14 |
15 | RT.get_or_init(|| {
16 | tokio::runtime::Builder::new_multi_thread()
17 | .worker_threads(1)
18 | .enable_all()
19 | .build()
20 | .unwrap()
21 | })
22 | .handle()
23 | .clone()
24 | }
25 |
26 | fn to_py_err(error: libsql_core::errors::Error) -> PyErr {
27 | let msg = match error {
28 | libsql::Error::SqliteFailure(_, err) => err,
29 | _ => error.to_string(),
30 | };
31 | PyValueError::new_err(msg)
32 | }
33 |
34 | fn is_remote_path(path: &str) -> bool {
35 | path.starts_with("libsql://") || path.starts_with("http://") || path.starts_with("https://")
36 | }
37 |
38 | #[pyfunction]
39 | #[cfg(not(Py_3_12))]
40 | #[pyo3(signature = (database, isolation_level="DEFERRED".to_string(), check_same_thread=true, uri=false, sync_url=None, sync_interval=None, auth_token="", encryption_key=None))]
41 | fn connect(
42 | py: Python<'_>,
43 | database: String,
44 | isolation_level: Option,
45 | check_same_thread: bool,
46 | uri: bool,
47 | sync_url: Option,
48 | sync_interval: Option,
49 | auth_token: &str,
50 | encryption_key: Option,
51 | ) -> PyResult {
52 | let conn = _connect_core(
53 | py,
54 | database,
55 | isolation_level,
56 | check_same_thread,
57 | uri,
58 | sync_url,
59 | sync_interval,
60 | auth_token,
61 | encryption_key,
62 | )?;
63 | Ok(conn)
64 | }
65 |
66 | #[pyfunction]
67 | #[cfg(Py_3_12)]
68 | #[pyo3(signature = (database, isolation_level="DEFERRED".to_string(), check_same_thread=true, uri=false, sync_url=None, sync_interval=None, auth_token="", encryption_key=None, autocommit = LEGACY_TRANSACTION_CONTROL))]
69 | fn connect(
70 | py: Python<'_>,
71 | database: String,
72 | isolation_level: Option,
73 | check_same_thread: bool,
74 | uri: bool,
75 | sync_url: Option,
76 | sync_interval: Option,
77 | auth_token: &str,
78 | encryption_key: Option,
79 | autocommit: i32,
80 | ) -> PyResult {
81 | let mut conn = _connect_core(
82 | py,
83 | database,
84 | isolation_level.clone(),
85 | check_same_thread,
86 | uri,
87 | sync_url,
88 | sync_interval,
89 | auth_token,
90 | encryption_key,
91 | )?;
92 |
93 | conn.autocommit =
94 | if autocommit == LEGACY_TRANSACTION_CONTROL || autocommit == 1 || autocommit == 0 {
95 | autocommit
96 | } else {
97 | return Err(PyValueError::new_err(
98 | "autocommit must be True, False, or sqlite3.LEGACY_TRANSACTION_CONTROL",
99 | ));
100 | };
101 | Ok(conn)
102 | }
103 |
104 | fn _connect_core(
105 | py: Python<'_>,
106 | database: String,
107 | isolation_level: Option,
108 | check_same_thread: bool,
109 | uri: bool,
110 | sync_url: Option,
111 | sync_interval: Option,
112 | auth_token: &str,
113 | encryption_key: Option,
114 | ) -> PyResult {
115 | let ver = env!("CARGO_PKG_VERSION");
116 | let ver = format!("libsql-python-rpc-{ver}");
117 | let rt = rt();
118 | let encryption_config = match encryption_key {
119 | Some(key) => {
120 | let cipher = libsql::Cipher::default();
121 | let encryption_config = libsql::EncryptionConfig::new(cipher, key.into());
122 | Some(encryption_config)
123 | }
124 | None => None,
125 | };
126 | let db = if is_remote_path(&database) {
127 | let result = libsql::Database::open_remote_internal(database.clone(), auth_token, ver);
128 | result.map_err(to_py_err)?
129 | } else {
130 | match sync_url {
131 | Some(sync_url) => {
132 | let sync_interval = sync_interval.map(|i| std::time::Duration::from_secs_f64(i));
133 | let mut builder =
134 | libsql::Builder::new_remote_replica(database, sync_url, auth_token.to_string());
135 | if let Some(encryption_config) = encryption_config {
136 | builder = builder.encryption_config(encryption_config);
137 | }
138 | if let Some(sync_interval) = sync_interval {
139 | builder = builder.sync_interval(sync_interval);
140 | }
141 | let fut = builder.build();
142 | tokio::pin!(fut);
143 | let result = rt.block_on(check_signals(py, fut));
144 | result.map_err(to_py_err)?
145 | }
146 | None => {
147 | let mut builder = libsql::Builder::new_local(database);
148 | if let Some(config) = encryption_config {
149 | builder = builder.encryption_config(config);
150 | }
151 | let fut = builder.build();
152 | tokio::pin!(fut);
153 | let result = rt.block_on(check_signals(py, fut));
154 | result.map_err(to_py_err)?
155 | }
156 | }
157 | };
158 |
159 | let autocommit = isolation_level.is_none() as i32;
160 | let conn = db.connect().map_err(to_py_err)?;
161 | Ok(Connection {
162 | db,
163 | conn: RefCell::new(Some(Arc::new(ConnectionGuard {
164 | conn: Some(conn),
165 | handle: rt.clone(),
166 | }))),
167 | isolation_level,
168 | autocommit,
169 | })
170 | }
171 |
172 | // We need to add a drop guard that runs when we finally drop our
173 | // only reference to libsql_core::Connection. This is because when
174 | // hrana is enabled it needs access to the tokio api to spawn a close
175 | // call in the background. So this adds the ability that when drop is called
176 | // on ConnectionGuard it will drop the connection with a tokio context entered.
177 | struct ConnectionGuard {
178 | conn: Option,
179 | handle: tokio::runtime::Handle,
180 | }
181 |
182 | impl std::ops::Deref for ConnectionGuard {
183 | type Target = libsql_core::Connection;
184 |
185 | fn deref(&self) -> &Self::Target {
186 | &self.conn.as_ref().expect("Connection already dropped")
187 | }
188 | }
189 |
190 | impl Drop for ConnectionGuard {
191 | fn drop(&mut self) {
192 | let _enter = self.handle.enter();
193 | if let Some(conn) = self.conn.take() {
194 | drop(conn);
195 | }
196 | }
197 | }
198 |
199 | #[pyclass]
200 | pub struct Connection {
201 | db: libsql_core::Database,
202 | conn: RefCell>>,
203 | isolation_level: Option,
204 | autocommit: i32,
205 | }
206 |
207 | // SAFETY: The libsql crate guarantees that `Connection` is thread-safe.
208 | unsafe impl Send for Connection {}
209 |
210 | #[pymethods]
211 | impl Connection {
212 | fn close(self_: PyRef<'_, Self>, py: Python<'_>) -> PyResult<()> {
213 | self_.conn.replace(None);
214 | Ok(())
215 | }
216 |
217 | fn cursor(&self) -> PyResult {
218 | Ok(Cursor {
219 | arraysize: 1,
220 | conn: RefCell::new(Some(self.conn.borrow().as_ref().unwrap().clone())),
221 | stmt: RefCell::new(None),
222 | rows: RefCell::new(None),
223 | rowcount: RefCell::new(0),
224 | autocommit: self.autocommit,
225 | isolation_level: self.isolation_level.clone(),
226 | done: RefCell::new(false),
227 | })
228 | }
229 |
230 | fn sync(self_: PyRef<'_, Self>, py: Python<'_>) -> PyResult<()> {
231 | let fut = {
232 | let _enter = rt().enter();
233 | self_.db.sync()
234 | };
235 | tokio::pin!(fut);
236 |
237 | rt().block_on(check_signals(py, fut)).map_err(to_py_err)?;
238 | Ok(())
239 | }
240 |
241 | fn commit(self_: PyRef<'_, Self>) -> PyResult<()> {
242 | // TODO: Switch to libSQL transaction API
243 | if !self_.conn.borrow().as_ref().unwrap().is_autocommit() {
244 | rt().block_on(async {
245 | self_
246 | .conn
247 | .borrow()
248 | .as_ref()
249 | .unwrap()
250 | .execute("COMMIT", ())
251 | .await
252 | })
253 | .map_err(to_py_err)?;
254 | }
255 | Ok(())
256 | }
257 |
258 | fn rollback(self_: PyRef<'_, Self>) -> PyResult<()> {
259 | // TODO: Switch to libSQL transaction API
260 | if !self_.conn.borrow().as_ref().unwrap().is_autocommit() {
261 | rt().block_on(async {
262 | self_
263 | .conn
264 | .borrow()
265 | .as_ref()
266 | .unwrap()
267 | .execute("ROLLBACK", ())
268 | .await
269 | })
270 | .map_err(to_py_err)?;
271 | }
272 | Ok(())
273 | }
274 |
275 | fn execute(
276 | self_: PyRef<'_, Self>,
277 | sql: String,
278 | parameters: Option<&PyTuple>,
279 | ) -> PyResult {
280 | let cursor = Connection::cursor(&self_)?;
281 | rt().block_on(async { execute(&cursor, sql, parameters).await })?;
282 | Ok(cursor)
283 | }
284 |
285 | fn executemany(
286 | self_: PyRef<'_, Self>,
287 | sql: String,
288 | parameters: Option<&PyList>,
289 | ) -> PyResult {
290 | let cursor = Connection::cursor(&self_)?;
291 | for parameters in parameters.unwrap().iter() {
292 | let parameters = parameters.extract::<&PyTuple>()?;
293 | rt().block_on(async { execute(&cursor, sql.clone(), Some(parameters)).await })?;
294 | }
295 | Ok(cursor)
296 | }
297 |
298 | fn executescript(self_: PyRef<'_, Self>, script: String) -> PyResult<()> {
299 | let _ = rt()
300 | .block_on(async {
301 | self_
302 | .conn
303 | .borrow()
304 | .as_ref()
305 | .unwrap()
306 | .execute_batch(&script)
307 | .await
308 | })
309 | .map_err(to_py_err);
310 | Ok(())
311 | }
312 |
313 | #[getter]
314 | fn isolation_level(self_: PyRef<'_, Self>) -> Option {
315 | self_.isolation_level.clone()
316 | }
317 |
318 | #[getter]
319 | fn in_transaction(self_: PyRef<'_, Self>) -> PyResult {
320 | #[cfg(Py_3_12)]
321 | {
322 | return Ok(
323 | !self_.conn.borrow().as_ref().unwrap().is_autocommit() || self_.autocommit == 0
324 | );
325 | }
326 | Ok(!self_.conn.borrow().as_ref().unwrap().is_autocommit())
327 | }
328 |
329 | #[getter]
330 | #[cfg(Py_3_12)]
331 | fn get_autocommit(self_: PyRef<'_, Self>) -> PyResult {
332 | Ok(self_.autocommit)
333 | }
334 |
335 | #[setter]
336 | #[cfg(Py_3_12)]
337 | fn set_autocommit(mut self_: PyRefMut<'_, Self>, autocommit: i32) -> PyResult<()> {
338 | if autocommit != LEGACY_TRANSACTION_CONTROL && autocommit != 1 && autocommit != 0 {
339 | return Err(PyValueError::new_err(
340 | "autocommit must be True, False, or sqlite3.LEGACY_TRANSACTION_CONTROL",
341 | ));
342 | }
343 | self_.autocommit = autocommit;
344 | Ok(())
345 | }
346 | }
347 |
348 | #[pyclass]
349 | pub struct Cursor {
350 | #[pyo3(get, set)]
351 | arraysize: usize,
352 | conn: RefCell>>,
353 | stmt: RefCell>,
354 | rows: RefCell>,
355 | rowcount: RefCell,
356 | done: RefCell,
357 | isolation_level: Option,
358 | autocommit: i32,
359 | }
360 |
361 | // SAFETY: The libsql crate guarantees that `Connection` is thread-safe.
362 | unsafe impl Send for Cursor {}
363 |
364 | impl Drop for Cursor {
365 | fn drop(&mut self) {
366 | let _enter = rt().enter();
367 | self.conn.replace(None);
368 | self.stmt.replace(None);
369 | self.rows.replace(None);
370 | }
371 | }
372 |
373 | #[pymethods]
374 | impl Cursor {
375 | fn close(self_: PyRef<'_, Self>) -> PyResult<()> {
376 | rt().block_on(async {
377 | let cursor: &Cursor = &self_;
378 | cursor.conn.replace(None);
379 | cursor.stmt.replace(None);
380 | cursor.rows.replace(None);
381 | });
382 | Ok(())
383 | }
384 |
385 | fn execute<'a>(
386 | self_: PyRef<'a, Self>,
387 | sql: String,
388 | parameters: Option<&PyTuple>,
389 | ) -> PyResult> {
390 | rt().block_on(async { execute(&self_, sql, parameters).await })?;
391 | Ok(self_)
392 | }
393 |
394 | fn executemany<'a>(
395 | self_: PyRef<'a, Self>,
396 | sql: String,
397 | parameters: Option<&PyList>,
398 | ) -> PyResult> {
399 | for parameters in parameters.unwrap().iter() {
400 | let parameters = parameters.extract::<&PyTuple>()?;
401 | rt().block_on(async { execute(&self_, sql.clone(), Some(parameters)).await })?;
402 | }
403 | Ok(self_)
404 | }
405 |
406 | fn executescript<'a>(
407 | self_: PyRef<'a, Self>,
408 | script: String,
409 | ) -> PyResult> {
410 | rt().block_on(async {
411 | self_
412 | .conn
413 | .borrow()
414 | .as_ref()
415 | .unwrap()
416 | .execute_batch(&script)
417 | .await
418 | })
419 | .map_err(to_py_err)?;
420 | Ok(self_)
421 | }
422 |
423 | #[getter]
424 | fn description(self_: PyRef<'_, Self>) -> PyResult> {
425 | let stmt = self_.stmt.borrow();
426 | let mut elements: Vec> = vec![];
427 | match stmt.as_ref() {
428 | Some(stmt) => {
429 | for column in stmt.columns() {
430 | let name = column.name();
431 | let element = (
432 | name,
433 | self_.py().None(),
434 | self_.py().None(),
435 | self_.py().None(),
436 | self_.py().None(),
437 | self_.py().None(),
438 | self_.py().None(),
439 | )
440 | .to_object(self_.py());
441 | elements.push(element);
442 | }
443 | let elements = PyTuple::new(self_.py(), elements);
444 | Ok(Some(elements))
445 | }
446 | None => Ok(None),
447 | }
448 | }
449 |
450 | fn fetchone(self_: PyRef<'_, Self>) -> PyResult> {
451 | let mut rows = self_.rows.borrow_mut();
452 | match rows.as_mut() {
453 | Some(rows) => {
454 | let row = rt().block_on(rows.next()).map_err(to_py_err)?;
455 | match row {
456 | Some(row) => {
457 | let row = convert_row(self_.py(), row, rows.column_count())?;
458 | Ok(Some(row))
459 | }
460 | None => Ok(None),
461 | }
462 | }
463 | None => Ok(None),
464 | }
465 | }
466 |
467 | fn fetchmany(self_: PyRef<'_, Self>, size: Option) -> PyResult> {
468 | let mut rows = self_.rows.borrow_mut();
469 | match rows.as_mut() {
470 | Some(rows) => {
471 | let size = size.unwrap_or(self_.arraysize as i64);
472 | let mut elements: Vec> = vec![];
473 | // The libSQL Rows.next() method restarts the iteration if it
474 | // has reached the end, which is why we need to check if we're
475 | // done before iterating.
476 | if !*self_.done.borrow() {
477 | for _ in 0..size {
478 | let row = rt()
479 | .block_on(async { rows.next().await })
480 | .map_err(to_py_err)?;
481 | match row {
482 | Some(row) => {
483 | let row = convert_row(self_.py(), row, rows.column_count())?;
484 | elements.push(row.into());
485 | }
486 | None => {
487 | self_.done.replace(true);
488 | break;
489 | }
490 | }
491 | }
492 | }
493 | Ok(Some(PyList::new(self_.py(), elements)))
494 | }
495 | None => Ok(None),
496 | }
497 | }
498 |
499 | fn fetchall(self_: PyRef<'_, Self>) -> PyResult> {
500 | let mut rows = self_.rows.borrow_mut();
501 | match rows.as_mut() {
502 | Some(rows) => {
503 | let mut elements: Vec> = vec![];
504 | loop {
505 | let row = rt()
506 | .block_on(async { rows.next().await })
507 | .map_err(to_py_err)?;
508 | match row {
509 | Some(row) => {
510 | let row = convert_row(self_.py(), row, rows.column_count())?;
511 | elements.push(row.into());
512 | }
513 | None => break,
514 | }
515 | }
516 | Ok(Some(PyList::new(self_.py(), elements)))
517 | }
518 | None => Ok(None),
519 | }
520 | }
521 |
522 | #[getter]
523 | fn lastrowid(self_: PyRef<'_, Self>) -> PyResult> {
524 | let stmt = self_.stmt.borrow();
525 | match stmt.as_ref() {
526 | Some(_) => Ok(Some(
527 | self_.conn.borrow().as_ref().unwrap().last_insert_rowid(),
528 | )),
529 | None => Ok(None),
530 | }
531 | }
532 |
533 | #[getter]
534 | fn rowcount(self_: PyRef<'_, Self>) -> PyResult {
535 | Ok(*self_.rowcount.borrow())
536 | }
537 | }
538 |
539 | async fn begin_transaction(conn: &libsql_core::Connection) -> PyResult<()> {
540 | conn.execute("BEGIN", ()).await.map_err(to_py_err)?;
541 | Ok(())
542 | }
543 |
544 | async fn execute(cursor: &Cursor, sql: String, parameters: Option<&PyTuple>) -> PyResult<()> {
545 | if cursor.conn.borrow().as_ref().is_none() {
546 | return Err(PyValueError::new_err("Connection already closed"));
547 | }
548 | let stmt_is_dml = stmt_is_dml(&sql);
549 | let autocommit = determine_autocommit(cursor);
550 | if !autocommit && stmt_is_dml && cursor.conn.borrow().as_ref().unwrap().is_autocommit() {
551 | begin_transaction(&cursor.conn.borrow().as_ref().unwrap()).await?;
552 | }
553 | let params = match parameters {
554 | Some(parameters) => {
555 | let mut params = vec![];
556 | for param in parameters.iter() {
557 | let param = if param.is_none() {
558 | libsql_core::Value::Null
559 | } else if let Ok(value) = param.extract::() {
560 | libsql_core::Value::Integer(value as i64)
561 | } else if let Ok(value) = param.extract::() {
562 | libsql_core::Value::Real(value)
563 | } else if let Ok(value) = param.extract::<&str>() {
564 | libsql_core::Value::Text(value.to_string())
565 | } else if let Ok(value) = param.extract::<&[u8]>() {
566 | libsql_core::Value::Blob(value.to_vec())
567 | } else {
568 | return Err(PyValueError::new_err("Unsupported parameter type"));
569 | };
570 | params.push(param);
571 | }
572 | libsql_core::params::Params::Positional(params)
573 | }
574 | None => libsql_core::params::Params::None,
575 | };
576 | let mut stmt = cursor
577 | .conn
578 | .borrow()
579 | .as_ref()
580 | .unwrap()
581 | .prepare(&sql)
582 | .await
583 | .map_err(to_py_err)?;
584 |
585 | if stmt.columns().iter().len() > 0 {
586 | let rows = stmt.query(params).await.map_err(to_py_err)?;
587 | cursor.rows.replace(Some(rows));
588 | } else {
589 | stmt.execute(params).await.map_err(to_py_err)?;
590 | cursor.rows.replace(None);
591 | }
592 |
593 | let mut rowcount = cursor.rowcount.borrow_mut();
594 | *rowcount += cursor.conn.borrow().as_ref().unwrap().changes() as i64;
595 |
596 | cursor.stmt.replace(Some(stmt));
597 | Ok(())
598 | }
599 |
600 | fn determine_autocommit(cursor: &Cursor) -> bool {
601 | #[cfg(Py_3_12)]
602 | {
603 | match cursor.autocommit {
604 | LEGACY_TRANSACTION_CONTROL => cursor.isolation_level.is_none(),
605 | _ => cursor.autocommit != 0,
606 | }
607 | }
608 |
609 | #[cfg(not(Py_3_12))]
610 | {
611 | cursor.isolation_level.is_none()
612 | }
613 | }
614 |
615 | fn stmt_is_dml(sql: &str) -> bool {
616 | let sql = sql.trim();
617 | let sql = sql.to_uppercase();
618 | sql.starts_with("INSERT") || sql.starts_with("UPDATE") || sql.starts_with("DELETE")
619 | }
620 |
621 | fn convert_row(py: Python, row: libsql_core::Row, column_count: i32) -> PyResult<&PyTuple> {
622 | let mut elements: Vec> = vec![];
623 | for col_idx in 0..column_count {
624 | let libsql_value = row.get_value(col_idx).map_err(to_py_err)?;
625 | let value = match libsql_value {
626 | libsql_core::Value::Integer(v) => {
627 | let value = v as i64;
628 | value.into_py(py)
629 | }
630 | libsql_core::Value::Real(v) => v.into_py(py),
631 | libsql_core::Value::Text(v) => v.into_py(py),
632 | libsql_core::Value::Blob(v) => {
633 | let value = v.as_slice();
634 | value.into_py(py)
635 | }
636 | libsql_core::Value::Null => py.None(),
637 | };
638 | elements.push(value);
639 | }
640 | Ok(PyTuple::new(py, elements))
641 | }
642 |
643 | create_exception!(libsql_experimental, Error, pyo3::exceptions::PyException);
644 |
645 | #[pymodule]
646 | fn libsql_experimental(py: Python, m: &PyModule) -> PyResult<()> {
647 | let _ = tracing_subscriber::fmt::try_init();
648 | m.add("LEGACY_TRANSACTION_CONTROL", LEGACY_TRANSACTION_CONTROL)?;
649 | m.add("paramstyle", "qmark")?;
650 | m.add("sqlite_version_info", (3, 42, 0))?;
651 | m.add("Error", py.get_type::())?;
652 | m.add_function(wrap_pyfunction!(connect, m)?)?;
653 | m.add_class::()?;
654 | m.add_class::()?;
655 | Ok(())
656 | }
657 |
658 | async fn check_signals(py: Python<'_>, mut fut: std::pin::Pin<&mut F>) -> R
659 | where
660 | F: std::future::Future