and should not be set on instances of that class. Usage::
class Starship:
- stats: ClassVar[Dict[str, int]] = {} # class variable
+ stats: ClassVar[dict[str, int]] = {} # class variable
damage: int = 10 # instance variable
:data:`ClassVar` accepts only types and cannot be further subscribed.
* ``Annotated`` can be used with nested and generic aliases::
T = TypeVar('T')
- Vec = Annotated[List[Tuple[T, T]], MaxLen(10)]
+ Vec = Annotated[list[tuple[T, T]], MaxLen(10)]
V = Vec[int]
- V == Annotated[List[Tuple[int, int]], MaxLen(10)]
+ V == Annotated[list[tuple[int, int]], MaxLen(10)]
.. versionadded:: 3.9
def process(response: None) -> None:
...
@overload
- def process(response: int) -> Tuple[int, str]:
+ def process(response: int) -> tuple[int, str]:
...
@overload
def process(response: bytes) -> str:
.. class:: ForwardRef
A class used for internal typing representation of string forward references.
- For example, ``List["SomeClass"]`` is implicitly transformed into
- ``List[ForwardRef("SomeClass")]``. This class should not be instantiated by
+ For example, ``list["SomeClass"]`` is implicitly transformed into
+ ``list[ForwardRef("SomeClass")]``. This class should not be instantiated by
a user, but may be used by introspection tools.
Constant