Pablo Bitton <[email protected]> added the comment:
I'd like to report a problem I encountered with the discussed use pattern using
subprocess-timeout-v5.patch on linux. I don't have python3 installed at work,
sorry.
When running:
p = subprocess.Popen("tcpdump -i eth0 > file &", stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True,
universal_newlines=True)
try:
out, err = p.communicate(timeout=1)
except subprocess.TimeoutExpired:
p.kill()
out, err = p.communicate()
After the timeout happens, the last line raises a ValueError: I/O operation on
closed file.
The exception is thrown from the register_and_append call for self.stdout in
_communicate_with_poll. I'm sorry again for not being able to attach the full
traceback.
The problem doesn't reproduce without the '&' or the '> file', and doesn't
reproduce with other executables I've tried.
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Python tracker <[email protected]>
<http://bugs.python.org/issue5673>
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