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

Victor Stinner victor.stinner at gmail.com
Tue Aug 6 02:59:45 CEST 2013

On Windows, the subprocess closes all handles and file descriptors in the child process by default. If at least one standard stream (stdin, stdout or stderr) is replaced (ex: redirected into a pipe), all inheritable handles are inherited in the child process.

Summary: =========================== ============= ================== ============= Module FD on UNIX Handles on Windows FD on Windows =========================== ============= ================== ============= subprocess, default STD, passfds none STD

Oh, the summary table is wrong for the "subprocess, default" line: all inheritable handles are inherited if at least one standard stream is replaced.

Victor

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