[Python-Dev] (New) PEP 446: Make newly created file descriptors non-inheritable

Victor Stinner victor.stinner at gmail.com
Wed Aug 7 18:55:51 CEST 2013

> Also the socket library creates sockets with inheritable handles by
default.  Apparently there isn't a reliable way to make sockets
non-inheritable because anti-virus/firewall software can interfere:

Recent versions of Windows provide an atomic flag to create a
non-inheritable socket. I hope that the falg is respected even with

For older versions of Windows, I don't see what Python can do. Is it a
blocker point for the PEP?

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