Download text file, Fork me on GitHub or Check out FAQ.
1. Collections: List, Dictionary, Set, Tuple, Range, Enumerate, Iterator, Generator.
2. Data Types: Type, String, Regular_Exp, Format, Numbers, Combinatorics, Datetime.
3. Syntax Rules: Function, Inline, Import, Decorator, Class, Duck_Type, Enum, Except.
4. System Calls: Exit, Print, Input, Command_Line_Arguments, Open, Path, OS_Commands.
5. Data Formats: JSON, Pickle, CSV, SQLite, Bytes, Struct, Array, Memory_View, Deque.
6. Misc Topics: Operator, Match_Statement, Logging, Introspection, Threads, Asyncio.
7. Pip Packages: Progress_Bar, Plot, Table, Console_App, GUI, Scraping, Web, Profile.
8. Multimedia: NumPy, Image, Animation, Audio, Synthesizer, Pygame, Pandas, Plotly.
if __name__ == '__main__': # Skips indented lines of code if file was imported.
main() # Executes user-defined `def main(): ...` function.<list> = [<el>, <el>, ...] # Creates new list object. E.g. `list_a = [1, 2, 3]`.<el> = <list>[index] # First index is 0, last -1. Also `<list>[i] = <el>`.
<list> = <list>[<slice>] # Also <list>[from_inclusive : to_exclusive : ±step].<list>.append(<el>) # Appends element to the end. Or `<list> += [<el>]`.
<list>.extend(<coll>) # Appends collection's items. Or `<list> += <coll>`.<list>.sort() # Sorts in ascending order. Accepts `reverse=True`.
<list>.reverse() # Reverses the order of elements. Takes linear time.
<list> = sorted(<coll>) # Returns a new sorted list. Accepts `reverse=True`.
<iter> = reversed(<list>) # Returns reversed iterator. Also list(<iterator>).<el> = max(<coll>) # Returns the largest element. Also min(<el>, <el>).
<num> = sum(<coll>) # Returns a sum of elements. Also math.prod(<coll>).elementwise_sum