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Add comment explaining why typing_extensions.TypedDict is kept distinct #15949

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AlexWaygood merged 1 commit into from
Jun 26, 2026
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Add comment explaining why typing_extensions.TypedDict is kept distinct #15949

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3 changes: 3 additions & 0 deletions stdlib/typing_extensions.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -232,6 +232,9 @@ Literal: _SpecialForm

def IntVar(name: str) -> Any: ... # returns a new TypeVar

# Kept as a distinct symbol to `typing.TypedDict` so that type checkers can more easily
# distinguish between the two on Python 3.14, on which `typing_extensions.TypedDict`
# exposes `__closed__` and `__extra_items__` but `typing.TypedDict` does not
TypedDict: _SpecialForm

# Internal mypy fallback type for all typed dicts (does not exist at runtime)
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