Tip

Feed the bear! The bear is rifling around in the refuse pile outside. <GitHub Sponsors_> You feel sadness, then trepidation.

BigData™

It's a big bear AAAAAAAAFTER all!
It's a big bear AAAAAAAAFTER all!
It's a big b——— *squelching sound, then blessed silence*

Beartype complies with vast swaths of Python’s typing landscape and lint-filled laundry list of Python Enhancement Proposals (PEPs) – but nobody’s perfect. Not even the hulking form of beartype does everything. ^{</audience_gasps>}

Let’s chart exactly what beartype complies with and when beartype first did so. Introducing… Beartype’s feature matrix of bloated doom! It will bore you into stunned disbelief that somebody typed all this. [1]

category	feature	partial support	full support
Python	3.5	—	0.1.0—0.3.0
	3.6	—	0.1.0—0.10.4
	3.7	—	0.1.0—0.15.0
	3.8	—	0.1.0—current
	3.9	—	0.3.2—current
	3.10	—	0.7.0—current
	3.11	—	0.12.0—current
	3.12	—	0.17.0—current
PEP	362	none	none
	435	0.16.0—current	none
	484	0.2.0—current	none
	526	—	0.15.0—current
	544	—	0.4.0—current
	557	0.10.0—current	none
	560	—	0.4.0—current
	561	—	0.6.0—current
	563	0.1.1—current	0.7.0—current
	570	—	0.10.0—current
	572	0.3.0—current	0.4.0—current
	585	—	0.5.0—current
	586	—	0.7.0—current
	589	0.9.0—current	none
	591	0.13.0—current	none
	593	—	0.4.0—current
	604	—	0.10.0—current
	612	none	none
	613	none	none
	621	—	0.15.0—current
	646	none	none
	647	—	0.13.0—current
	649	none	none
	663	0.16.0—current	none
	673	—	0.14.0—current
	675	0.14.0—current	none
	681	none	none
	688	—	0.1.0—current
	692	none	none
	695	0.17.0—current	none
	698	none	none
	3102	—	0.1.0—current
	3119	0.7.0—current	0.9.0—current
	3141	—	0.1.0—current
packaging	PyPI	0.1.0—current	—
	Anaconda	0.1.0—current	—
	Arch Linux	0.12.0—current	—
	Gentoo Linux	0.2.0—current	—
	macOS Homebrew	0.5.1—current	—
	macOS MacPorts	0.5.1—current	—
decoratable	classes	—	0.11.0—current
	coroutines	—	0.9.0—current
	dataclasses	—	0.10.0—current
	enumerations	0.16.0—current	none
	functions	—	0.1.0—current
	generators (asynchronous)	—	0.9.0—current
	generators (synchronous)	—	0.1.0—current
	methods	—	0.1.0—current
	pseudo-functions (__call__())	—	0.13.0—current
hints	covariant	—	0.1.0—current
	contravariant	none	none
	absolute forward references	—	0.14.0—current
	relative forward references	—	0.14.0—current
	subscriptable forward references	—	0.16.0—current
	tuple unions	—	0.1.0—current
	type alias statements	0.17.0—current	none
parameters	optional	—	0.11.0—current
	keyword-only	—	0.1.0—current
	positional-only	—	0.10.0—current
	variadic keyword	none	none
	variadic positional	—	0.1.0—current
plugin APIs	__instancecheck_str__	—	0.17.0—current
shell variables	${BEARTYPE_IS_COLOR}	—	0.16.0—current
static checkers	mypy	—	0.6.0—current
	pyright	—	0.11.0—current
	pytype	none	none
	Pyre	none	none
beartype	beartype()	—	0.1.0—current
	BeartypeConf	—	0.10.0—current
	BeartypeStrategy	—	0.10.0—current
beartype.abby	die_if_unbearable	—	0.10.0—0.10.4
	is_bearable	—	0.10.0—0.10.4
beartype.claw	beartype_all()	—	0.15.0—current
	beartype_package()	—	0.15.0—current
	beartype_packages()	—	0.15.0—current
	beartype_this_package()	—	0.15.0—current
	beartyping()	—	0.15.0—current
beartype.door	TypeHint	—	0.11.0—current
	AnnotatedTypeHint	—	0.11.0—current
	CallableTypeHint	—	0.11.0—current
	LiteralTypeHint	—	0.11.0—current
	NewTypeTypeHint	—	0.11.0—current
	TypeVarTypeHint	—	0.11.0—current
	UnionTypeHint	—	0.11.0—current
	die_if_unbearable()	—	0.11.0—current
	is_bearable()	—	0.11.0—current
	is_subhint()	—	0.11.0—current
beartype.peps	resolve_pep563()	—	0.11.0—current
beartype.typing	all	—	0.10.0—current
beartype.vale	Is	—	0.7.0—current
	IsAttr	—	0.7.0—current
	IsEqual	—	0.7.0—current
	IsInstance	—	0.10.0—current
	IsSubclass	—	0.9.0—current
builtins	None	—	0.6.0—current
	NotImplemented	—	0.7.1—current
	dict	0.5.0—current	none
	frozenset	0.5.0—current	none
	list	—	0.5.0—current
	set	0.5.0—current	none
	tuple	—	0.5.0—current
	type	0.5.0—current	0.9.0—current
collections	ChainMap	0.5.0—current	none
	Counter	0.5.0—current	none
	OrderedDict	0.5.0—current	none
	defaultdict	0.5.0—current	none
	deque	0.5.0—current	none
collections.abc	AsyncGenerator	0.5.0—current	none
	AsyncIterable	0.5.0—current	none
	AsyncIterator	0.5.0—current	none
	Awaitable	0.5.0—current	none
	Buffer	—	0.1.0—current
	ByteString	—	0.5.0—current
	Callable	0.5.0—current	none
	Collection	0.5.0—current	none
	Container	0.5.0—current	none
	Coroutine	0.5.0—current	0.9.0—current
	Generator	0.5.0—current	none
	ItemsView	0.5.0—current	none
	Iterable	0.5.0—current	none
	Iterator	0.5.0—current	none
	KeysView	0.5.0—current	none
	Mapping	0.5.0—current	none
	MappingView	0.5.0—current	none
	MutableMapping	0.5.0—current	none
	MutableSequence	—	0.5.0—current
	MutableSet	0.5.0—current	none
	Reversible	0.5.0—current	none
	Sequence	—	0.5.0—current
	Set	0.5.0—current	none
	ValuesView	0.5.0—current	none
contextlib	AbstractAsyncContextManager	0.5.0—current	none
	AbstractContextManager	0.5.0—current	none
	contextmanager	—	0.15.0—current
dataclasses	InitVar	—	0.10.0—current
	dataclass	0.10.0—current	none
enum	Enum	0.16.0—current	none
equinox	all	—	0.17.0—current
	StrEnum	0.16.0—current	none
functools	lru_cache	—	0.15.0—current
nuitka	all	—	0.12.0—current
nptyping	all	—	0.17.0—current
numpy.typing	numpy.typing.NDArray	—	0.8.0—current
os	PathLike	0.17.0—current	none
pandera	all	0.13.0—current	—
re	Match	0.5.0—current	none
	Pattern	0.5.0—current	none
sphinx	sphinx.ext.autodoc	—	0.9.0—current
typing	AbstractSet	0.2.0—current	none
	Annotated	—	0.4.0—current
	Any	—	0.2.0—current
	AnyStr	0.4.0—current	none
	AsyncContextManager	0.4.0—current	none
	AsyncGenerator	0.2.0—current	none
	AsyncIterable	0.2.0—current	none
	AsyncIterator	0.2.0—current	none
	Awaitable	0.2.0—current	none
	BinaryIO	0.4.0—current	0.10.0—current
	ByteString	—	0.2.0—current
	Callable	0.2.0—current	none
	ChainMap	0.2.0—current	none
	ClassVar	none	none
	Collection	0.2.0—current	none
	Concatenate	none	none
	Container	0.2.0—current	none
	ContextManager	0.4.0—current	none
	Coroutine	0.2.0—current	0.9.0—current
	Counter	0.2.0—current	none
	DefaultDict	0.2.0—current	none
	Deque	0.2.0—current	none
	Dict	0.2.0—current	none
	Final	0.13.0—current	none
	ForwardRef	0.4.0—current	0.16.0—current
	FrozenSet	0.2.0—current	none
	Generator	0.2.0—current	none
	Generic	—	0.4.0—current
	Hashable	0.2.0—current	none
	IO	0.4.0—current	0.10.0—current
	ItemsView	0.2.0—current	none
	Iterable	0.2.0—current	none
	Iterator	0.2.0—current	none
	KeysView	0.2.0—current	none
	List	0.2.0—current	0.3.0—current
	Literal	—	0.7.0—current
	LiteralString	0.14.0—current	none
	Mapping	0.2.0—current	none
	MappingView	0.2.0—current	none
	Match	0.4.0—current	none
	MutableMapping	0.2.0—current	none
	MutableSequence	0.2.0—current	0.3.0—current
	MutableSet	0.2.0—current	none
	NamedTuple	0.1.0—current	0.12.0—current
	NewType	—	0.4.0—current
	NoReturn	—	0.4.0—current
	Optional	—	0.2.0—current
	OrderedDict	0.2.0—current	none
	ParamSpec	none	none
	ParamSpecArgs	none	none
	ParamSpecKwargs	none	none
	Pattern	0.4.0—current	none
	Protocol	—	0.4.0—current
	Reversible	0.2.0—current	none
	Self	—	0.14.0—current
	Sequence	0.2.0—current	0.3.0—current
	Set	0.2.0—current	none
	Sized	—	0.2.0—current
	SupportsAbs	—	0.4.0—current
	SupportsBytes	—	0.4.0—current
	SupportsComplex	—	0.4.0—current
	SupportsFloat	—	0.4.0—current
	SupportsIndex	—	0.4.0—current
	SupportsInt	—	0.4.0—current
	SupportsRound	—	0.4.0—current
	Text	—	0.1.0—current
	TextIO	0.4.0—current	0.10.0—current
	Tuple	0.2.0—current	0.4.0—current
	Type	0.2.0—current	0.9.0—current
	TypeAliasType	none	none
	TypeGuard	—	0.13.0—current
	TypedDict	0.9.0—current	none
	TypeVar	0.4.0—current	none
	TypeVarTuple	none	none
	Union	—	0.2.0—current
	ValuesView	0.2.0—current	none
	TYPE_CHECKING	—	0.5.0—current
	final	none	none
	no_type_check	—	0.5.0—current
	override	none	none
typing_extensions	all attributes	—	0.8.0—current
weakref	ref	0.17.0—current	none

[1]

They now suffer crippling RSI so that you may appear knowledgeable before colleagues.