└── README.md


/README.md:
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  1 | # Python Secrets
  2 | Curated list of all the hidden jokes, easter eggs, secrets and the lesser known things in Python
  3 | 
  4 | 
  5 | ## Table of Contents
  6 | - [Did you know?](#did-you-know)
  7 | - [Easter Eggs](#easter-eggs)
  8 | - [Misc.](#misc)
  9 | 
 10 | 
 11 | ## Did you know?
 12 | 
 13 | ### 1. You can't subclass bool
 14 | ```py
 15 | >>> class subclass_of_bool(bool):
 16 | ...   pass
 17 | ...
 18 | Traceback (most recent call last):
 19 |   File "<stdin>", line 1, in <module>
 20 | TypeError: type 'bool' is not an acceptable base type
 21 | ```
 22 | 
 23 | ### 2. Oxford 15
 24 | ```
 25 | >>> 0xfor~d
 26 | 15
 27 | ```
 28 | 
 29 | Now try tipping the 0xfedor-a 🎩
 30 | 
 31 | ### 3. Unicode identifiers
 32 | ```py
 33 | π = 3.1415
 34 | area = π * r ** 2
 35 | ```
 36 | 
 37 | ### 4. Longs
 38 | 
 39 | ```py
 40 | >>> p = 256
 41 | >>> q = 256
 42 | >>> p is q
 43 | True
 44 | >>> p = 257
 45 | >>> q = 257
 46 | >>> p is q
 47 | False
 48 | ```
 49 | 
 50 | ### 4.CLI month calendar
 51 | 
 52 | ```bash
 53 | python -m "calendar" 2021 7
 54 | ``` 
 55 | For options: `python -m "calendar" --help`
 56 | 
 57 | ## Easter Eggs
 58 | 
 59 | ### 1. Zen of Python
 60 | ```py
 61 | import this
 62 | ```
 63 | 
 64 | ### 2. Easiest Hello World
 65 | ```py
 66 | import __hello__
 67 | ```
 68 | 
 69 | ### 3. Braces in python?
 70 | ```py
 71 | from __future__ import braces
 72 |   File "<stdin>", line 1
 73 | SyntaxError: not a chance
 74 | ```
 75 | 
 76 | ### 4. InPynite?
 77 | ```py
 78 | >>> hash(float('inf'))
 79 | 314159
 80 | >>> hash(float('nan'))
 81 | 0
 82 | ```
 83 | 
 84 | ### 5. Antigravity
 85 | ```py
 86 | import antigravity
 87 | ```
 88 | 
 89 | ### 6. Random coordinates
 90 | ```py
 91 | >>> from antigravity import geohash
 92 | >>> print(geohash(37.421542, -122.085589, b'2005-05-26-10458.68'))
 93 | # 37.857713 -122.544543
 94 | ```
 95 | 
 96 | ### 7. Friendly Language Uncle For Life
 97 | ```py
 98 | >>> from __future__ import barry_as_FLUFL
 99 | >>> 1 != 3
100 |   File "<stdin>", line 1
101 |     1 != 3
102 |        ^
103 | SyntaxError: with Barry as BDFL, use '<>' instead of '!='
104 | >>> 1 <> 3
105 | True
106 | ```
107 | ### 8. New parser?
108 | ```py
109 | >>> __peg_parser__
110 |   File "<stdin>", line 1
111 |     __peg_parser__
112 |     ^
113 | SyntaxError: You found it!
114 | ```
115 | Note: This will work only in 3.9 and will be removed in 3.10 along with the LL(1) parser with the introduction of the new PEG parser.
116 | 
117 | ### 9. Not for the faint of heart
118 | ```py
119 | >>> import types
120 | >>> help(types.CodeType)                                          
121 | ```
122 | 
123 | 
124 | ## Misc.
125 | 
126 | ### 1. If statement without using an if
127 | ```py
128 | # 1 condition
129 | ['cond1 is false', 'cond1 is true'][cond1]
130 | 
131 | # 2 conditions
132 | ['both false', 'cond1 is true', 'cond2 is true', 'both true'][2*cond2 + cond1]
133 | ```
134 | 
135 | ### 2. For loop without using for, while
136 | ```py
137 | def loop(array):
138 |   if len(array) == 0:
139 |     return 0
140 |   else: 
141 |     # do smth with array[0] for example print(array[0])
142 |     print(array[0])
143 |     return loop(array[1:])
144 | 
145 | loop([1,2,3,'a string'])
146 | ```
147 | 


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