Add typing_extensions.NamedTuple

stdlib/typing_extensions.pyi

@@ -1,6 +1,8 @@
 import abc
+import collections
 import sys
 from _typeshed import IdentityFunction, Self as TypeshedSelf # see #6932 for why the Self alias cannot have a leading underscore
+from collections.abc import Iterable
 from typing import ( # noqa: Y022,Y027,Y039
  TYPE_CHECKING as TYPE_CHECKING,
  Any,
@@ -54,6 +56,7 @@ __all__ = [
  "Counter",
  "Deque",
  "DefaultDict",
+ "NamedTuple",
  "OrderedDict",
  "TypedDict",
  "SupportsIndex",
@@ -194,6 +197,7 @@ else:
 
 # New things in 3.11
 if sys.version_info >= (3, 11):
+ from typing import NamedTuple as NamedTuple # Ability to create generic NamedTuples is new in 3.11
  from typing import (
  LiteralString as LiteralString,
  Never as Never,
@@ -237,3 +241,24 @@ else:
  field_specifiers: tuple[type[Any] | Callable[..., Any], ...] = ...,
  **kwargs: object,
  ) -> IdentityFunction: ...
+
+ class NamedTuple(tuple[Any, ...]):
+ if sys.version_info < (3, 8):
+ _field_types: collections.OrderedDict[str, type]
+ elif sys.version_info < (3, 9):
+ _field_types: dict[str, type]
+ _field_defaults: dict[str, Any]
+ _fields: tuple[str, ...]
+ _source: str
+ @overload
+ def __init__(self, typename: str, fields: Iterable[tuple[str, Any]] = ...) -> None: ...
+ @overload
+ def __init__(self, typename: str, fields: None = ..., **kwargs: Any) -> None: ...
+ @classmethod
+ def _make(cls: type[_T], iterable: Iterable[Any]) -> _T: ...
+ if sys.version_info >= (3, 8):
+ def _asdict(self) -> dict[str, Any]: ...
+ else:
+ def _asdict(self) -> collections.OrderedDict[str, Any]: ...
+
+ def _replace(self: TypeshedSelf, **kwargs: Any) -> TypeshedSelf: ...