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Improve the annotations of types.MappingProxyType #5822

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Merged
merged 4 commits into from
Jul 30, 2021
Merged

Improve the annotations of types.MappingProxyType #5822

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985e6e7
Annotate three previously missing `MappingProxyType` methods
Jul 30, 2021
54b4b1c
Improve 5 `MappingProxyType` methods
Jul 30, 2021
8b7fac6
Move `__reversed__` to python >= 3.9
Jul 30, 2021
4a864e9
Make the value type of `types.MappingProxyType` covariant
Jul 30, 2021
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24 changes: 19 additions & 5 deletions stdlib/types.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -10,24 +10,29 @@ from typing import (
Dict,
Generator,
Generic,
ItemsView,
Iterable,
Iterator,
KeysView,
Mapping,
Optional,
Tuple,
Type,
TypeVar,
ValuesView,
overload,
)
from typing_extensions import Literal, final

# Note, all classes "defined" here require special handling.

_T = TypeVar("_T")
_T1 = TypeVar("_T1")
_T2 = TypeVar("_T2")
_T_co = TypeVar("_T_co", covariant=True)
_T_contra = TypeVar("_T_contra", contravariant=True)
_KT = TypeVar("_KT")
_VT = TypeVar("_VT")
_VT_co = TypeVar("_VT_co", covariant=True)
_V_co = TypeVar("_V_co", covariant=True)

class _Cell:
Expand Down Expand Up @@ -137,12 +142,21 @@ class CodeType:
co_lnotab: bytes = ...,
) -> CodeType: ...

class MappingProxyType(Mapping[_KT, _VT], Generic[_KT, _VT]):
def __init__(self, mapping: Mapping[_KT, _VT]) -> None: ...
def __getitem__(self, k: _KT) -> _VT: ...
class MappingProxyType(Mapping[_KT, _VT_co], Generic[_KT, _VT_co]):
__hash__: None # type: ignore
def __init__(self, mapping: Mapping[_KT, _VT_co]) -> None: ...
def __getitem__(self, k: _KT) -> _VT_co: ...
def __iter__(self) -> Iterator[_KT]: ...
def __len__(self) -> int: ...
def copy(self) -> Dict[_KT, _VT]: ...
def copy(self) -> Dict[_KT, _VT_co]: ...
def keys(self) -> KeysView[_KT]: ...
def values(self) -> ValuesView[_VT_co]: ...
def items(self) -> ItemsView[_KT, _VT_co]: ...
if sys.version_info >= (3, 9):
def __class_getitem__(cls, item: Any) -> GenericAlias: ...
def __reversed__(self) -> Iterator[_KT]: ...
def __or__(self, __value: Mapping[_T1, _T2]) -> dict[_KT | _T1, _VT_co | _T2]: ...
def __ror__(self, __value: Mapping[_T1, _T2]) -> dict[_KT | _T1, _VT_co | _T2]: ...

class SimpleNamespace:
def __init__(self, **kwargs: Any) -> None: ...
Expand Down