Python Classes and Dataclasses Cheat Sheet
Define Python classes, manage instance and class state, add properties and alternate constructors, use inheritance, and model records with dataclasses.
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Language and Objects
Define functions, classes, protocols, types, control flow, and reusable behavior.
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Language and Objects cheat sheets
Each guide includes copy-ready syntax, detailed examples, and authoritative references.
Python Context Managers Cheat Sheet
Manage files, locks, temporary state, cleanup stacks, and custom resources with with, contextmanager, closing, suppress, and ExitStack.
Open cheat sheetPython Decorators, Closures, and Callables Cheat Sheet
Build composable Python callables with closures, nonlocal state, metadata-preserving decorators, factories, partial, singledispatch, and callable objects.
Open cheat sheetPython Enums and Symbolic Constants Cheat Sheet
Model closed sets of Python constants with Enum, StrEnum, IntEnum, Flag, aliases, auto-generated values, validation decorators, and robust lookup behavior.
Open cheat sheetPython Exceptions Cheat Sheet
Raise, catch, inspect, chain, and clean up after Python exceptions with specific handlers, else, finally, custom errors, and context managers.
Open cheat sheetPython Functions Cheat Sheet
Define, call, document, annotate, and compose Python functions with safe defaults, flexible arguments, callbacks, closures, and decorators.
Open cheat sheetPython Object Protocols and Special Methods Cheat Sheet
Integrate Python classes with representation, truth testing, equality, hashing, ordering, container access, descriptors, and attribute lookup protocols.
Open cheat sheetPython Structural Pattern Matching Cheat Sheet
Route structured Python data with match and case using literals, captures, sequences, mappings, class patterns, OR patterns, AS patterns, guards, and enum constants.
Open cheat sheetPython Type Hints, Generics, and Protocols Cheat Sheet
Annotate Python functions, containers, unions, callables, generics, protocols, type guards, aliases, and dataclass-like records without confusing hints with runtime enforcement.
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