[New-bugs-announce] [issue17131] subprocess.Popen.terminate can raise exception on Posix
S Arrowsmith
report at bugs.python.org
Tue Feb 5 10:54:59 CET 2013
New submission from S Arrowsmith:
Compare this with the script in #14252:
p = Popen(['/bin/sleep', '1'])
time.sleep(1)
p.terminate()
print p.poll()
p.terminate()
Output is:
0
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/subprocess.py", line 1269, in terminate
self.send_signal(signal.SIGTERM)
File "/usr/lib/python2.6/subprocess.py", line 1264, in send_signal
os.kill(self.pid, sig)
OSError: [Errno 3] No such process
The 0 return from poll() indicates that the subprocess ran to completion, rather than being terminated by the first terminate. So the first terminate does nothing, but the second terminate raises an exception. In http://bugs.python.org/issue14252#msg155396 :
"Raising an exception on terminate is a bug."
----------
components: Library (Lib)
messages: 181425
nosy: siona
priority: normal
severity: normal
status: open
title: subprocess.Popen.terminate can raise exception on Posix
type: behavior
versions: Python 2.6, Python 2.7, Python 3.2
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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17131>
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