Stratum host/port autodetection failed

[Jimmy2011]

I got an error while using mining_proxy as following:

Code:

2013-10-07 21:58:08,210 ERROR proxy # Stratum host/port autodetection failed
Traceback (most recent call last):
  File "./mining_proxy.py", line 178, in main
    new_host = (yield utils.detect_stratum(args.host, args.port))
AttributeError: 'module' object has no attribute '_parse'
2013-10-07 21:58:08,211 WARNING proxy # Stratum proxy version: 1.5.2
2013-10-07 21:58:08,213 WARNING proxy # Checking for updates...

The update checking last so long time and the proxy won't proceed until I press "ctrl-c". After "ctrl-c", the proxy continued.

So what's the problem? Thanks.