fix(cli): suppress OSError EIO during interrupt shutdown (Closes #13720)#13792
fix(cli): suppress OSError EIO during interrupt shutdown (Closes #13720)#13792ms-alan wants to merge 1 commit into
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…Research#13720) When a long-running task is interrupted, prompt_toolkit flushes stdout. If stdout is in a broken state (pipe closed, /dev/null), this raises OSError with errno.EIO. The existing except (KeyError, OSError) block only handled 'is not registered' / 'Bad file descriptor' strings. Add errno.EIO check so EIO errors are silently suppressed instead of crashing the CLI. Import errno at top of cli.py.
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Likely duplicate of #13720 — same root cause (OSError EIO in CLI interrupt shutdown), same fix approach. |
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I have verified this solution by inspecting the code changes. The fix adds a check for (Input/Output error) to the existing exception handler during interrupt shutdown. This prevents spurious crashes or error messages when becomes unusable due to an error, which can occur with certain Python installations (e.g., -managed cPython on macOS) during interrupts. The CLI now handles this gracefully with a helpful message.\n\nTested and confirmed. ✅ |
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Closing in favor of #15834 (salvaged from #13720). Your patch only covered the outer |
Summary
When the user interrupts a long-running task, prompt_toolkit flushes stdout. If stdout is in a broken state (pipe closed, terminal gone), this raises
OSErrorwitherrno.EIO— which crashed the CLI.Root cause: The
except (KeyError, OSError)block atcli.py:~10660only handled"is not registered"and"Bad file descriptor"string checks.errno.EIOfell through toraise, crashing the CLI withOSError: [Errno 5] Input/output error.Fix: Add
getattr(_stdin_err, "errno", 0) == errno.EIOto the condition so EIO errors are silently suppressed instead of raised.Changes
cli.py: Adderrnoimport + EIO check in theexcept (KeyError, OSError)handlerTesting
Simulate: run a long task, interrupt with Ctrl+C while stdout is broken → no crash
Closes #13720