jtriley/pystun — pull request #7 by Feng-Zihao (2014-07-21 07:35:26+00:00)
Title: Fix infinite loop and nonType bug.

1, it's a logic bug in stun_test
2, there're stun implementation which do not have 'changed address' attribute in response.
In this case, there's not enough evidence to judge NAT type.