[issue3006] subprocess.Popen causes socket to remain open after close

[Kevin Watters]

Kevin Watters <kevinwatters at gmail.com> added the comment:

I found a workaround for this issue (attached) via the kernel32.dll
function SetHandleInformation. You can patch the socket class to set all
newly created sockets as uninheritable.

It's not perfect--another thread could still spawn a subprocess in
between.  We probably need some kind of API for setting socket inheritance.

Added file: http://bugs.python.org/file11029/socketinherit.py

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