Bug #1531963: Make SocketServer.TCPServer's server_address always be equal to calling getsockname() on the server's socket.
Will backport.
diff --git a/Lib/test/test_socketserver.py b/Lib/test/test_socketserver.py
index e4cbb2b..6232175 100644
--- a/Lib/test/test_socketserver.py
+++ b/Lib/test/test_socketserver.py
@@ -84,6 +84,7 @@
         addr = getattr(svr, 'server_address')
         if addr:
             self.__addr = addr
+            assert self.__addr == svr.socket.getsockname()
         if verbose: print "thread: serving three times"
         svr.serve_a_few()
         if verbose: print "thread: done"