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Attempt to clarify the ByteString situation (#9783)

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See https://github.com/python/cpython/issues/102092

This makes the behaviour of typing.ByteString better match its
documentation.
This commit is contained in:
Shantanu
2023-05-27 21:37:38 -07:00
committed by GitHub
parent 82ea677495
commit d6a85e2c48
6 changed files with 11 additions and 4 deletions
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5
stdlib/builtins.pyi
View File

@@ -36,7 +36,6 @@ from typing import ( # noqa: Y022
IO,
Any,
BinaryIO,
ByteString,
ClassVar,
Generic,
Mapping,
@@ -592,7 +591,7 @@ class str(Sequence[str]):
def __rmul__(self, __value: SupportsIndex) -> str: ... # type: ignore[misc]
def __getnewargs__(self) -> tuple[str]: ...
class bytes(ByteString):
class bytes(Sequence[int]):
@overload
def __new__(cls, __o: Iterable[SupportsIndex] | SupportsIndex | SupportsBytes | ReadableBuffer) -> Self: ...
@overload
@@ -697,7 +696,7 @@ class bytes(ByteString):
def __buffer__(self, __flags: int) -> memoryview: ...
class bytearray(MutableSequence[int], ByteString):
class bytearray(MutableSequence[int]):
@overload
def __init__(self) -> None: ...
@overload

2
stdlib/typing.pyi
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@@ -771,7 +771,7 @@ class TextIO(IO[str]):
@abstractmethod
def __enter__(self) -> TextIO: ...
class ByteString(Sequence[int], metaclass=ABCMeta): ...
ByteString: typing_extensions.TypeAlias = bytes | bytearray | memoryview
# Functions

1
tests/stubtest_allowlists/py37.txt
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@@ -23,6 +23,7 @@ collections.AsyncGenerator.ag_await
collections.AsyncGenerator.ag_code
collections.AsyncGenerator.ag_frame
collections.AsyncGenerator.ag_running
collections.ByteString # see comments in py3_common.txt
collections.Callable
collections.Mapping.__reversed__ # Set to None at runtime for a better error message
contextvars.ContextVar.get

1
tests/stubtest_allowlists/py38.txt
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@@ -29,6 +29,7 @@ collections.AsyncGenerator.ag_await
collections.AsyncGenerator.ag_code
collections.AsyncGenerator.ag_frame
collections.AsyncGenerator.ag_running
collections.ByteString # see comments in py3_common.txt
collections.Callable
collections.ItemsView.__reversed__
collections.KeysView.__reversed__

1
tests/stubtest_allowlists/py39.txt
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@@ -27,6 +27,7 @@ collections.AsyncGenerator.ag_await
collections.AsyncGenerator.ag_code
collections.AsyncGenerator.ag_frame
collections.AsyncGenerator.ag_running
collections.ByteString # see comments in py3_common.txt
collections.Callable
collections.Mapping.__reversed__ # Set to None at runtime for a better error message
collections.ItemsView.__reversed__

5
tests/stubtest_allowlists/py3_common.txt
View File

@@ -667,6 +667,11 @@ xml.etree.ElementTree.Element.__iter__
xml.etree.cElementTree.Element.__iter__
typing.IO.__iter__ # See https://github.com/python/typeshed/commit/97bc450acd60c1bcdafef3ce8fbe3b95a9c0cac3
# Pretend typing.ByteString is a Union, to better match its documented semantics.
# As a side effect, this changes the definition of collections.abc.ByteString, which is okay,
# because it's not an ABC that makes any sense and was deprecated in 3.12
_collections_abc.ByteString
# ==========
# Missing from deprecated modules
# Any of these can be added if someone needs them