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gh-102500: Implement PEP 688 (#102521)

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Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
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Jelle Zijlstra 2023-05-04 07:59:46 -07:00 • committed by GitHub
parent b17d32c114
commit 04f6733275
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26 changed files with 640 additions and 15 deletions
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17
Lib/_collections_abc.py
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@ -49,7 +49,7 @@ __all__ = ["Awaitable", "Coroutine",
"Mapping", "MutableMapping",
"MappingView", "KeysView", "ItemsView", "ValuesView",
"Sequence", "MutableSequence",
"ByteString",
"ByteString", "Buffer",
]
# This module has been renamed from collections.abc to _collections_abc to
@ -439,6 +439,21 @@ class Collection(Sized, Iterable, Container):
return NotImplemented
class Buffer(metaclass=ABCMeta):
__slots__ = ()
@abstractmethod
def __buffer__(self, flags: int, /) -> memoryview:
raise NotImplementedError
@classmethod
def __subclasshook__(cls, C):
if cls is Buffer:
return _check_methods(C, "__buffer__")
return NotImplemented
class _CallableGenericAlias(GenericAlias):
""" Represent `Callable[argtypes, resulttype]`.