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[3.13] gh-126980: Fix bytearray.__buffer__ crash on PyBUF_{READ,WRITE} (GH-126981) (#127023)

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(cherry picked from commit 3932e1db53)

Co-authored-by: Victor Stinner <vstinner@python.org>
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sobolevn 2024-11-19 20:37:53 +03:00 • committed by GitHub
parent dd222a4d47
commit 3fae84fe58
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3 changed files with 15 additions and 4 deletions
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8
Lib/test/test_buffer.py
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@ -4439,6 +4439,14 @@ def test_issue_7385(self):
x = ndarray([1,2,3], shape=[3], flags=ND_GETBUF_FAIL)
self.assertRaises(BufferError, memoryview, x)
def test_bytearray_release_buffer_read_flag(self):
# See https://github.com/python/cpython/issues/126980
obj = bytearray(b'abc')
with self.assertRaises(SystemError):
obj.__buffer__(inspect.BufferFlags.READ)
with self.assertRaises(SystemError):
obj.__buffer__(inspect.BufferFlags.WRITE)
@support.cpython_only
def test_pybuffer_size_from_format(self):
# basic tests