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Reduce duplication of code between typing and typing_extensions (#7075)

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This commit is contained in:
Alex Waygood
2022-01-29 15:44:42 +00:00
committed by GitHub
parent 54eef59fe4
commit 99cec2d16b
4 changed files with 13 additions and 15 deletions
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11
stdlib/typing_extensions.pyi
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@@ -35,8 +35,12 @@ from typing import ( # noqa Y022
_T = TypeVar("_T")
_F = TypeVar("_F", bound=Callable[..., Any])
# unfortunately we have to duplicate this class definition from typing.pyi or we break pytype
class _SpecialForm:
def __getitem__(self, typeargs: Any) -> Any: ...
def __getitem__(self, typeargs: Any) -> object: ...
if sys.version_info >= (3, 10):
def __or__(self, other: Any) -> _SpecialForm: ...
def __ror__(self, other: Any) -> _SpecialForm: ...
# This alias for above is kept here for backwards compatibility.
runtime = runtime_checkable
@@ -51,11 +55,6 @@ Literal: _SpecialForm
def IntVar(name: str) -> Any: ... # returns a new TypeVar
if sys.version_info < (3, 8):
# Technically in 3.6 this inherited from GenericMeta. But let's not reflect that, since
# type checkers tend to assume that Protocols all have the ABCMeta metaclass.
class _ProtocolMeta(abc.ABCMeta): ...
# Internal mypy fallback type for all typed dicts (does not exist at runtime)
class _TypedDict(Mapping[str, object], metaclass=abc.ABCMeta):
__required_keys__: frozenset[str]