[Python-Dev] Long-time shy failure in test_socket_ssl

Has anyone else noticed this? For a long time (possibly years), I see an infrequent error in test_socket_ssl, like so (this is on WinXP Pro): test_socket_ssl test test_socket_ssl crashed -- exceptions.TypeError: 'NoneType' object is not callable I haven't been able to provoke it by running test_socket_ssl in a loop, and I don't have a guess about what's going wrong by eyeballing the code. test_rude_shutdown() is dicey, relying on a sleep() instead of proper synchronization to make it probable that the `listener` thread goes away before the main thread tries to connect, but while that race may account for bogus TestFailed deaths, it doesn't seem possible that it could account for the kind of failure above.