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Defined _NoneType class in typing.pyi that type checkers can use to… #4519

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Merged
merged 7 commits into from
Sep 20, 2020
Merged

Defined _NoneType class in typing.pyi that type checkers can use to… #4519

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1dfad52
Defined `_NoneType` class in typing.pyi that type checkers can use to…
msfterictraut Sep 10, 2020
dea91b5
Removed `__class__` property because stubtest thinks it conflicts wit…
msfterictraut Sep 10, 2020
ac286da
Fixed auto-formatter mishap.
msfterictraut Sep 10, 2020
72e427a
Incorporated code review feedback.
msfterictraut Sep 12, 2020
688dff4
Moved _NoneType from typing.pyi to _typeshed.pyi, made the type @fina…
msfterictraut Sep 19, 2020
433c792
Made isort happy.
msfterictraut Sep 19, 2020
b4960cc
Renamed `_NoneType` to `NoneType`.
msfterictraut Sep 20, 2020
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7 changes: 6 additions & 1 deletion stdlib/2and3/_typeshed/__init__.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ import array
import mmap
import sys
from typing import AbstractSet, Container, Iterable, Protocol, Text, Tuple, TypeVar, Union
from typing_extensions import Literal
from typing_extensions import Literal, final

_KT = TypeVar("_KT")
_KT_co = TypeVar("_KT_co", covariant=True)
Expand Down Expand Up @@ -164,3 +164,8 @@ if sys.version_info >= (3,):
else:
ReadableBuffer = Union[bytes, bytearray, memoryview, array.array, mmap.mmap, buffer]
WriteableBuffer = Union[bytearray, memoryview, array.array, mmap.mmap, buffer]

# Used by type checkers for checks involving None (does not exist at runtime)
@final
class NoneType:
def __bool__(self) -> Literal[False]: ...