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gh-89386: Lib/pty.py: handle stdin I/O errors same way as master I/O errors #28388

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gh-89386: Lib/pty.py: handle stdin I/O errors same way as master I/O errors #28388

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924e0c3
Lib/pty.py: handle stdin I/O errors same way as master I/O errors
kanavin Dec 7, 2022
3c3c3bb
📜🤖 Added by blurb_it.
blurb-it[bot] Dec 7, 2022
506691c
Merge main into PR 28388
ambv Oct 22, 2026
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7 changes: 6 additions & 1 deletion Lib/pty.py
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Original file line number Diff line number Diff line change
Expand Up @@ -149,7 +149,12 @@ def _copy(master_fd, master_read=_read, stdin_read=_read):
i_buf = i_buf[n:]

if stdin_avail and STDIN_FILENO in rfds:
data = stdin_read(STDIN_FILENO)
# Some OSes signal EOF by returning an empty byte string,
# some throw OSErrors.
try:
data = stdin_read(STDIN_FILENO)
except OSError:
data = b""
if not data:
stdin_avail = False
else:
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2022-12-07-08-35-38.gh-issue-45223.PET2I5.rst
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@@ -0,0 +1 @@
Lib/pty.py: handle stdin I/O errors same way as master I/O error
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