8000 gh-122559: Synchronize C and Python implementation of the io module about pickling by serhiy-storchaka · Pull Request #122628 · python/cpython · GitHub
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gh-122559: Synchronize C and Python implementation of the io module about pickling #122628

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Merged
merged 5 commits into from
May 4, 2025
Merged

gh-122559: Synchronize C and Python implementation of the io module about pickling #122628

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f6e66a6
gh-122559: Synchronize C and Python implementation of the io module a…
serhiy-storchaka Aug 2, 2024
5203270
Update Misc/NEWS.d/next/Library/2024-08-02-20-01-36.gh-issue-122559.2…
serhiy-storchaka Aug 3, 2024
d0ac52d
Merge branch 'main' into io-classes-getstate
serhiy-storchaka Sep 9, 2024
4274134
Merge branch 'main' into io-classes-getstate
serhiy-storchaka Nov 12, 2024
c13733c
Merge branch 'main' into io-classes-getstate
serhiy-storchaka May 4, 2025
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Merge branch 'main' into io-classes-getstate
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@serhiy-storchaka
serhiy-storchaka authored May 4, 2025
commit c13733cf46b08754aa852e66a3a5b8f1b3c550ed
16 changes: 16 additions & 0 deletions Lib/test/test_io.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3994,6 +3994,22 @@ def __setstate__(slf, state):
self.assertEqual(newtxt.tag, 'ham')
del MyTextIO

@unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
def test_read_non_blocking(self):
import os
r, w = os.pipe()
try:
os.set_blocking(r, False)
with self.io.open(r, 'rt') as textfile:
r = None
# Nothing has been written so a non-blocking read raises a BlockingIOError exception.
with self.assertRaises(BlockingIOError):
textfile.read()
finally:
if r is not None:
os.close(r)
os.close(w)


class MemviewBytesIO(io.BytesIO):
'''A BytesIO object whose read method returns memoryviews
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