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Reference

Quick-lookup documentation for Python built-ins, standard-library modules, and core data-type methods.

Built-in Functions

Python built-in functions available without imports.

abs() aiter() all() anext() any() ascii() bin() bool() breakpoint() bytearray() bytes() callable() chr() classmethod() compile() complex() delattr() dict() dir() divmod() enumerate() eval() exec() filter() float() format() frozenset() getattr() globals() hasattr() hash() help() hex() id() input() int() isinstance() issubclass() iter() len() list() locals() map() max() memoryview() min() next() object() oct() open() ord() pow() print() property() range() repr() reversed() round() set() setattr() slice() sorted() staticmethod() str() sum() super() tuple() type() vars() zip()

Dictionary Methods

Methods available on Python dict objects.

dict.clear() dict.copy() dict.fromkeys() dict.get() dict.items() dict.keys() dict.pop() dict.popitem() dict.setdefault() dict.update() dict.values()

dunder-methods

__add__ / __radd__ / __iadd__

keywords

__init__

dunder-methods

__add__ / __radd__ / __iadd__ __bool__ __call__ __class_getitem__ __contains__ __del__ __delitem__ __enter__ / __exit__ __eq__ __getattr__ / __getattribute__ __hash__ __mul__ / __rmul__ / __imul__ __new__ __next__ __setattr__ and __delattr__ __setitem__ __str__ __sub__ / __rsub__ / __isub__

dunder-methods

__mul__ / __rmul__ / __imul__

dunder-methods

__new__

keywords

__repr__

dunder-methods

__str__

keywords

:= (walrus operator) and as keyword assert async/await await break class continue def del elif / else elif / else for from global if statement in operator is operator lambda nonlocal not or operator pass raise return try / except / finally try / except / finally while with yield

List Methods

Methods available on Python list objects.

list.append() list.clear() list.copy() list.count() list.extend() list.index() list.insert() list.pop() list.remove() list.reverse() list.sort()

Modules

Popular standard-library modules and how to use them.

argparse ast asyncio base64 bisect calendar collections concurrent.futures configparser contextlib copy csv dataclasses datetime decimal difflib enum fractions functools gc module glob gzip hashlib heapq html http inspect io module ipaddress itertools json logging math multiprocessing operator os module os.path pathlib pickle platform pprint queue random re module shutil signal socket sqlite3 statistics string struct subprocess sys tarfile tempfile textwrap threading time timeit traceback typing unittest urllib.parse uuid warnings weakref zipfile zoneinfo

Set Methods

Methods available on Python set objects.

set.add() set.clear() set.copy() set.difference_update() set.difference() set.discard() set.intersection() set.isdisjoint() set.issubset() set.issuperset() set.pop() set.remove() set.symmetric_difference_update() set.symmetric_difference() set.union() set.update()

String Methods

Methods available on Python str objects.

str.capitalize() str.casefold() str.center() str.count() str.encode() str.endswith() str.expandtabs() str.find() str.format_map() str.format() str.isalnum() str.isalpha() str.isascii() str.isdecimal() str.isdigit() str.isidentifier() str.islower() str.isnumeric() str.isprintable() str.isspace() str.istitle() str.isupper() str.join() str.ljust() str.lower() str.lstrip() str.maketrans() str.partition() str.removeprefix() str.removesuffix() str.replace() str.rfind() str.rjust() str.rpartition() str.rsplit() str.rstrip() str.split() str.splitlines() str.startswith() str.strip() str.swapcase() str.title() str.translate() str.upper() str.zfill()

Tuple Methods

Methods available on Python tuple objects.

tuple.count() tuple.index()

keywords

while