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Features

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—0.19.0
	3.9	—	0.3.2—0.22.0
	3.10	—	0.7.0—current
	3.11	—	0.12.0—current
	3.12	—	0.17.0—current
	3.13	—	0.19.0—current
	3.14	—	0.22.0—current
PEP	342	none	0.22.8—current
PEP	362	none	none
PEP	380	none	0.22.8—current
	435	0.16.0—current	none
	440	0.1.0—current	none
	484	0.2.0—current	none
	517	—	0.19.0—current
	518	—	0.19.0—current
PEP	525	none	0.22.7—current
	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	—	0.7.0—current
	570	—	0.10.0—current
	572	—	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	0.19.0—current	none
	613	none	0.18.0—current
	621	—	0.19.0—current
	646	0.22.0—current	none
	647	—	0.13.0—current
	649	none	0.22.0—current
	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	0.19.0—current	none
	695	—	0.21.0—current
	696	none	0.22.0—current
	698	none	none
	705	none	none
	742	—	0.20.0—current
	747	none	none
	749	none	0.22.0—current
	3102	—	0.1.0—current
	3119	—	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	—	0.21.0—current
parameters	optional	—	0.18.0—current
	keyword-only	—	0.1.0—current
	positional-only	—	0.10.0—current
	variadic keyword	—	0.19.0—current
	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.bite	infer_hint()	—	0.22.0—current
beartype.door	TypeHint	—	0.11.0—current
	AnnotatedTypeHint	—	0.11.0—current
	AnyTypeHint	—	0.20.0—current
	CallableTypeHint	—	0.11.0—current
	GenericTypeHint	—	0.20.0—current
	LiteralTypeHint	—	0.11.0—current
	NewTypeTypeHint	—	0.11.0—current
	TupleFixedTypeHint	—	0.19.0—current
	TupleVariableTypeHint	—	0.19.0—current
	TypeVarTypeHint	—	0.11.0—current
	UnionTypeHint	—	0.11.0—current
	die_if_unbearable()	—	0.11.0—current
	infer_hint()	—	0.19.0—0.21.0
	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	—	0.18.0—current
	frozenset	—	0.19.0—current
	list	—	0.5.0—current
	set	—	0.19.0—current
	tuple	—	0.5.0—current
	type	—	0.9.0—current
click	all	—	0.20.0—current
collections	ChainMap	—	0.19.0—current
	Counter	—	0.19.0—current
	OrderedDict	—	0.18.0—current
	defaultdict	—	0.18.0—current
	deque	—	0.19.0—current
celery.Celery	@task	–	0.22.0—current
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	–	0.19.0—current
	Container	—	0.20.0—current
	Coroutine	0.9.0—current	none
	Generator	0.5.0—current	none
	ItemsView	—	0.19.0—current
	Iterable	—	0.20.0—current
	Iterator	0.5.0—current	none
	KeysView	–	0.19.0—current
	Mapping	–	0.18.0—current
	MappingView	0.5.0—current	none
	MutableMapping	–	0.18.0—current
	MutableSequence	—	0.5.0—current
	MutableSet	—	0.19.0—current
	Reversible	—	0.20.0—current
	Sequence	—	0.5.0—current
	Set	—	0.19.0—current
	ValuesView	—	0.19.0—current
contextlib	AbstractAsyncContextManager	0.5.0—current	none
	AbstractContextManager	0.5.0—current	none
	asynccontextmanager	—	0.20.0—current
	contextmanager	—	0.15.0—current
dataclasses	InitVar	—	0.10.0—current
	dataclass	0.10.0—current	none
enum	Enum	0.16.0—current	none
	StrEnum	0.16.0—current	none
equinox	Module	—	0.17.0—0.19.0
	@filter_jit	—	0.19.0—current
gradio	all	–	0.22.7—current
inspect	isasyncgenfunction	–	0.22.7—current
	isgeneratorfunction	–	0.22.6—current
jax	@jit	—	0.19.0—current
jaxtyping	@jaxtyped	—	0.22.0—current
langchain	most	0.20.0—current	none
langchain_core.runnables	@chain	–	0.22.0—current
functools	lru_cache	—	0.15.0—current
nuitka	all	—	0.12.0—current
numba	@njit	—	0.19.0—current
nptyping	all	—	0.17.0—current
numpy.typing	numpy.typing.NDArray	—	0.8.0—current
os	PathLike	0.17.0—current	none
PyInstaller	all	—	0.22.9—current
pandera	all	—	0.13.0—current
pydantic	all	0.20.0—current	none
re	Match	0.5.0—current	none
	Pattern	0.5.0—current	none
redis	redis.Redis	—	0.22.3—current
rich_click	all	—	0.20.1—current
sphinx	sphinx.ext.autodoc	—	0.9.0—current
typing	AbstractSet	—	0.19.0—current
	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	—	0.10.0—current
	ByteString	—	0.2.0—current
	Callable	0.2.0—current	none
	ChainMap	—	0.19.0—current
	ClassVar	none	none
	Collection	—	0.19.0—current
	Concatenate	none	none
	Container	—	0.20.0—current
	ContextManager	0.4.0—current	none
	Coroutine	0.9.0—current	none
	Counter	—	0.19.0—current*
	DefaultDict	—	0.18.0—current
	Deque	—	0.19.0—current
	Dict	—	0.18.0—current*
	Final	0.13.0—current	none
	ForwardRef	—	0.16.0—current
	FrozenSet	—	0.19.0—current
	Generator	0.2.0—current	none
	Generic	—	0.4.0—current
	Hashable	0.2.0—current	none
	IO	—	0.10.0—current
	ItemsView	—	0.19.0—current
	Iterable	—	0.20.0—current
	Iterator	0.2.0—current	none
	KeysView	—	0.19.0—current
	List	—	0.3.0—current
	Literal	—	0.7.0—current
	LiteralString	0.14.0—current	none
	Mapping	–	0.18.0—current*
	MappingView	0.2.0—current	none
	Match	0.4.0—current	none
	MutableMapping	–	0.18.0—current
	MutableSequence	—	0.3.0—current
	MutableSet	—	0.19.0—current
	NamedTuple	—	0.12.0—current
	NewType	—	0.4.0—current
	NoDefault	—	0.22.0—current
	NoReturn	—	0.4.0—current
	Optional	—	0.2.0—current
	OrderedDict	–	0.18.0—current
	ParamSpec	none	none
	ParamSpecArgs	0.19.0—current	none
	ParamSpecKwargs	0.19.0—current	none
	Pattern	0.4.0—current	none
	Protocol	—	0.4.0—current
	ReadOnly	none	none
	Reversible	—	0.20.0—current
	Self	—	0.14.0—current
	Sequence	—	0.3.0—current
	Set	—	0.190—current
	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	—	0.10.0—current
	Tuple	—	0.4.0—current
	Type	—	0.9.0—current
	TypeAlias	—	0.18.0—current
	TypeGuard	—	0.13.0—current
	TypeIs	—	0.20.0—current
	TypedDict	0.9.0—current	none
	TypeVar	0.4.0—current	none
	TypeVarTuple	0.19.0—current	none
	Union	—	0.2.0—current
	Unpack	0.19.0—current	none
	ValuesView	—	0.19.0—current
	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
xarray	all	0.20.0—current	none
weakref	ref	0.17.0—current	none

[1]

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