New submission from Memeplex:
When not using a timeout, communicate will raise a BrokenPipeError if the
command returns an error code. For example:
sp = subprocess.Popen('cat --not-an-option', shell=True, stdin=subprocess.PIPE)
time.sleep(.2)
sp.communicate(b'hi\n')
This isn't consistent with the behavior of communicate with a timeout, which
doesn't raise the exception. Moreover, there is even a comment near the point
of the exception stating that communicate must ignore BrokenPipeError:
def _stdin_write(self, input):
if input:
try:
self.stdin.write(input)
except BrokenPipeError:
# communicate() must ignore broken pipe error
pass
....
self.stdin.close()
Obviously, the problem is that self.stdin.close() is outside the except clause.
----------
components: Library (Lib)
messages: 260373
nosy: memeplex
priority: normal
severity: normal
status: open
title: Popen.communicate not ignoring BrokenPipeError
type: behavior
versions: Python 3.5
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Python tracker <[email protected]>
<http://bugs.python.org/issue26372>
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