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[stdlib] memoryview updates for version 3.14 #15102

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[stdlib] memoryview updates for version 3.14 #15102

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3a40587
[stdlib] memoryview updates for version 3.14
guoci Dec 3, 2025
878d94a
Merge branch 'main' into patch-3
guoci Dec 4, 2025
2eaedba
fix memoryview test
guoci Dec 4, 2025
1e64326
Add import for sys module in check_memoryview.py
guoci Dec 4, 2025
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9 changes: 7 additions & 2 deletions stdlib/@tests/test_cases/builtins/check_memoryview.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
from __future__ import annotations

import array
import sys
from typing_extensions import assert_type

# Casting to bytes.
Expand Down Expand Up @@ -57,5 +58,9 @@
mv = memoryview(b"abc")
mv.cast("abc") # type: ignore

mv.index(42) # type: ignore
mv.count(42) # type: ignore
if sys.version_info >= (3, 14):
mv.index(42)
mv.count(42)
else:
mv.index(42) # type: ignore
mv.count(42) # type: ignore
12 changes: 8 additions & 4 deletions stdlib/builtins.pyi
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Expand Up @@ -944,11 +944,15 @@ class memoryview(Sequence[_I]):
def hex(self, sep: str | bytes = ..., bytes_per_sep: SupportsIndex = 1) -> str: ...
def __buffer__(self, flags: int, /) -> memoryview: ...
def __release_buffer__(self, buffer: memoryview, /) -> None: ...
if sys.version_info >= (3, 14):
def index(self, value: object, start: SupportsIndex = 0, stop: SupportsIndex = sys.maxsize, /) -> int: ...
def count(self, value: object, /) -> int: ...
else:
# These are inherited from the Sequence ABC, but don't actually exist on memoryview.
# See https://github.com/python/cpython/issues/125420
index: ClassVar[None] # type: ignore[assignment]
count: ClassVar[None] # type: ignore[assignment]

# These are inherited from the Sequence ABC, but don't actually exist on memoryview.
# See https://github.com/python/cpython/issues/125420
index: ClassVar[None] # type: ignore[assignment]
count: ClassVar[None] # type: ignore[assignment]
if sys.version_info >= (3, 14):
def __class_getitem__(cls, item: Any, /) -> GenericAlias: ...

Expand Down