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gh-135329: prevent infinite traceback loop on Ctrl-C for strace #138133

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Merged
ambv merged 18 commits into from
Sep 16, 2025
Merged

gh-135329: prevent infinite traceback loop on Ctrl-C for strace #138133

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ede576f
fix: strace ./python will forever loop
yihong0618 Aug 25, 2025
9235522
fix: add news
yihong0618 Aug 25, 2025
5ff6b9b
fix: address comments
yihong0618 Aug 25, 2025
d37d318
fix: address comments and add tests
yihong0618 Aug 25, 2025
f33f4ad
fix: address comments
yihong0618 Aug 26, 2025
851476b
fix: add EIO erorr with strace test
yihong0618 Sep 1, 2025
9658e5f
Merge branch 'hy/fix_can_not_strace' of https://github.com/yihong0618…
yihong0618 Sep 1, 2025
d54f137
fix: address comments
yihong0618 Sep 2, 2025
f441dca
fix: raise EIO without strace
yihong0618 Sep 2, 2025
0fc6c4a
fix: import sort
yihong0618 Sep 2, 2025
ac14061
fix: use spawn_python
yihong0618 Sep 3, 2025
41e191e
Update Lib/_pyrepl/unix_console.py
yihong0618 Sep 12, 2025
e3ae9a2
fix: apply comments
yihong0618 Sep 12, 2025
f463849
fix: test on windows
yihong0618 Sep 12, 2025
1801806
Run the internal EIO test on any non-win32 plat
ambv Sep 16, 2025
d0f9659
Merge branch 'main' into pr-138133
ambv Sep 16, 2025
e4a9a67
Apply suggestions from code review
ambv Sep 16, 2025
643f368
Treat ENXIO as success
ambv Sep 16, 2025
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fix: address comments 
Signed-off-by: yihong0618 <[email protected]>
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@yihong0618
yihong0618 committed Aug 26, 2025
commit f33f4ad171e86ba48e02ef38f02556cebd361f8d
6 changes: 3 additions & 3 deletions Lib/_pyrepl/unix_console.py
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Original file line number Diff line number Diff line change
Expand Up @@ -340,6 +340,9 @@ def prepare(self):
tcsetattr(self.input_fd, termios.TCSADRAIN, raw)
except termios.error as e:
if e.args[0] != errno.EIO:
# gh-135329: when running under external programs (like strace),
# tcsetattr may fail with EIO. We can safely ignore this
# and continue with default terminal settings.
raise

# In macOS terminal we need to deactivate line wrap via ANSI escape code
Expand Down Expand Up @@ -376,9 +379,6 @@ def restore(self):
tcsetattr(self.input_fd, termios.TCSADRAIN, self.__svtermstate)
except termios.error as e:
if e.args[0] != errno.EIO:
# gh-135329: when running under external programs (like strace),
# tcsetattr may fail with EIO. We can safely ignore this
# and continue with default terminal settings.
raise

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if platform.system() == "Darwin" and os.getenv("TERM_PROGRAM") == "Apple_Terminal":
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