STINNER Victor added the comment: Ok, this issue is the corner case of the PEP 446: http://www.python.org/dev/peps/pep-0446/#only-inherit-some-handles-on-windows
The PEP explicitly does nothing for this case. It can change in the future. Until the point is fixed, you have to use a lock around the code spawning new processes to avoid that two threads spawn two processes and inherit unexpected files. Example: Thread 1 creates file 1, thread 2 creates file 2, child process inherits files 1 and 2, instead of just file 1. Richard proposed to use a trampoline process, the parent process would it the handles to inherit. Since Windows Vista, the trampoline process is no more needed. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue19575> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com