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Committer:
Davi Arnaut
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Date:
2012-03-12 18:10:03 UTC
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Revision ID:
davi@twitter.com-20120312181003-sg45g1xqm85jplwc
Popen.poll() returns None to indicate that the child process hasn't
terminated yet. Also, an exception thrown by send_siginal() needs
to be ignored as there is a unavoidable race condition as the child
process might exit between poll() being checked and a signal being
sent.