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Changed typing_extensions.pyi to declare its own private version of Protocol #7133

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merged 3 commits into from
Feb 5, 2022
Merged

Changed typing_extensions.pyi to declare its own private version of Protocol #7133

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3f3ab38
Changed typing_extensions.pyi to declare its own private version of `…
msfterictraut Feb 5, 2022
d7a46a8
Update stdlib/typing_extensions.pyi
JelleZijlstra Feb 5, 2022
817e5f5
Added `runtime_checkable` private definition based on PR feedback.
msfterictraut Feb 5, 2022
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8 changes: 7 additions & 1 deletion stdlib/typing_extensions.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@ from typing import ( # noqa Y022
Mapping,
NewType as NewType,
NoReturn as NoReturn,
Protocol as Protocol,
Text as Text,
Type as Type,
TypeVar,
Expand All @@ -49,6 +48,13 @@ Self: _SpecialForm
Required: _SpecialForm
NotRequired: _SpecialForm

# Do not import (and re-export) Protocol from typing module because
# type checkers need to be able to distinguish typing.Protocol and
# typing_extensions.Protocol so they can properly warn users about
# potential runtime exceptions when using typing.Protocol on older
# versions of Python.
Protocol: _SpecialForm
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def final(f: _F) -> _F: ...

Literal: _SpecialForm
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