[issue16327] subprocess.Popen leaks file descriptors on os.fork() failure

[Charles-François Natali]

Charles-François Natali added the comment:

Also, I didn't check, but if the problems also occurs on execve()
failure, then it's much simpler: simply call Popen() with an
invalid/nonexisting executable.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16327>
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