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[3.14] gh-142594: fix by property calls io.TextIOWrapper.detach (GH-142706) (GH-142755)

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(cherry picked from commit 1d3854a19a)

Signed-off-by: yihong0618 <zouzou0208@gmail.com>
Co-authored-by: yihong <zouzou0208@gmail.com>
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Cody Maloney 2025-12-16 01:55:25 -08:00 • committed by GitHub
parent b9cbdde80d
commit 58da2a9d94
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16
Lib/test/test_io.py
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@ -4194,6 +4194,22 @@ def write(self, data):
self.assertEqual([b"abcdef", b"middle", b"g"*chunk_size],
buf._write_stack)
def test_issue142594(self):
wrapper = None
detached = False
class ReentrantRawIO(self.RawIOBase):
@property
def closed(self):
nonlocal detached
if wrapper is not None and not detached:
detached = True
wrapper.detach()
return False
raw = ReentrantRawIO()
wrapper = self.TextIOWrapper(raw)
wrapper.close() # should not crash
class PyTextIOWrapperTest(TextIOWrapperTest):
io = pyio