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

Richard Oudkerk shibturn at gmail.com
Tue Aug 6 02:48:18 CEST 2013


On 06/08/2013 1:23am, Victor Stinner wrote:

Each operating system handles the inheritance of file descriptors differently. Windows creates non-inheritable file descriptors by default, whereas UNIX creates inheritable file descriptors by default.

The Windows API creates non-inheritable handles by default. But the C runtime creates inheritable fds by default.

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:

http://stackoverflow.com/questions/12058911/can-tcp-socket-handles-be-set-not-inheritable

-- Richard



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