pip._vendor.typing_extensions.Protocol Class Reference

Inheritance diagram for pip._vendor.typing_extensions.Protocol:

Collaboration diagram for pip._vendor.typing_extensions.Protocol:

Public Member Functions
	__init_subclass__ (cls, *args, **kwargs)
	__new__ (cls, *args, **kwds)
	__class_getitem__ (cls, params)
	__init_subclass__ (cls, *args, **kwargs)
Public Member Functions inherited from pip._vendor.typing_extensions._ProtocolMeta
	__init__ (cls, *args, **kwargs)
	__subclasscheck__ (cls, other)
	__instancecheck__ (cls, instance)
	__eq__ (cls, other)
int	__hash__ (cls)

Protected Attributes
	_is_protocol

Static Protected Attributes
bool	_is_protocol = True
bool	_is_runtime_protocol = False

Detailed Description

Base class for protocol classes. Protocol classes are defined as::

    class Proto(Protocol):
        def meth(self) -> int:
            ...

Such classes are primarily used with static type checkers that recognize
structural subtyping (static duck-typing), for example::

    class C:
        def meth(self) -> int:
            return 0

    def func(x: Proto) -> int:
        return x.meth()

    func(C())  # Passes static type check

See PEP 544 for details. Protocol classes decorated with
@typing_extensions.runtime_checkable act
as simple-minded runtime-checkable protocols that check
only the presence of given attributes, ignoring their type signatures.

Protocol classes can be generic, they are defined as::

    class GenProto(Protocol[T]):
        def meth(self) -> T:
            ...

Member Function Documentation

__new__()

pip._vendor.typing_extensions.Protocol.__new__	(		cls,
		*	args,
		**	kwds
	)

Reimplemented from pip._vendor.typing_extensions._ProtocolMeta.

---

The documentation for this class was generated from the following file:

• docs/help/help-venv/lib/python3.12/site-packages/pip/_vendor/typing_extensions.py