This was this test which was failing:


    def testConnectTimeout(self):
        # Choose a private address that is unlikely to exist to prevent
        # failures due to the connect succeeding before the timeout.
        # Use a dotted IP address to avoid including the DNS lookup time
        # with the connect time.  This avoids failing the assertion that
        # the timeout occurred fast enough.
        addr = ('10.0.0.0', 12345)
        with support.transient_internet(addr[0]):
            self._sock_operation(1, 0.001, 'connect', addr)


I suspect a conflicting configuration of the EuroPython network ;)
Let's close it.