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Sync typeshed #21232

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fc2b0d1
Sync typeshed
Apr 15, 2026
46c81f5
Adjust stubs to fix mypy lookup error due to circular dependencies in…
cdce8p Feb 18, 2026
042e0b0
Partially revert Clean up argparse hacks
cdce8p Feb 15, 2025
68047c4
Remove use of LiteralString in builtins (#13743)
hauntsaninja Sep 26, 2022
bbd1965
Revert Remove redundant inheritances from Iterator in builtins
cdce8p Dec 21, 2024
fa4ba51
Revert Use contravariant type variable in Container
cdce8p Feb 23, 2026
3d84558
Revert dict.__or__ typeshed change
ilevkivskyi Apr 7, 2026
533aa6b
Revert sum literal integer change (#13961)
hauntsaninja Oct 29, 2022
8c2b983
Revert typeshed ctypes change
AlexWaygood May 1, 2023
196e129
Temporarily revert contextlib deprecation
hauntsaninja Feb 23, 2026
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Partially revert Clean up argparse hacks
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@cdce8p
cdce8p authored and mypybot committed Apr 15, 2026
commit 042e0b002a84500037fbf98d8a8895a1926ba1c3
8 changes: 5 additions & 3 deletions mypy/typeshed/stdlib/argparse.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ import sys
from _typeshed import SupportsWrite, sentinel
from collections.abc import Callable, Generator, Iterable, Sequence
from re import Pattern
from typing import IO, Any, ClassVar, Final, Generic, NoReturn, Protocol, TypeVar, overload, type_check_only
from typing import IO, Any, ClassVar, Final, Generic, NewType, NoReturn, Protocol, TypeVar, overload, type_check_only
from typing_extensions import Self, TypeAlias, deprecated

__all__ = [
Expand Down Expand Up @@ -36,7 +36,9 @@ ONE_OR_MORE: Final = "+"
OPTIONAL: Final = "?"
PARSER: Final = "A..."
REMAINDER: Final = "..."
SUPPRESS: Final = "==SUPPRESS=="
_SUPPRESS_T = NewType("_SUPPRESS_T", str)
SUPPRESS: _SUPPRESS_T | str # not using Literal because argparse sometimes compares SUPPRESS with is
# the | str is there so that foo = argparse.SUPPRESS; foo = "test" checks out in mypy
ZERO_OR_MORE: Final = "*"
_UNRECOGNIZED_ARGS_ATTR: Final = "_unrecognized_args" # undocumented

Expand Down Expand Up @@ -79,7 +81,7 @@ class _ActionsContainer:
# more precisely, Literal["?", "*", "+", "...", "A...", "==SUPPRESS=="],
# but using this would make it hard to annotate callers that don't use a
# literal argument and for subclasses to override this method.
nargs: int | str | None = None,
nargs: int | str | _SUPPRESS_T | None = None,
const: Any = ...,
default: Any = ...,
type: _ActionType = ...,
Expand Down