[issue18643] add a fallback socketpair() implementation in test.support

[STINNER Victor]

STINNER Victor added the comment:

> In this case, socketpair-4.diff looks good to me. You can commit your
patch in Python 3.5.

Hey Charles-François, can you commit your patch? I forgot that you did commited it yet, and I expected socket.socketpair() to be available on all platforms.

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18643>
_______________________________________