gntp fails intermittently on OS X 10.9.0

[BlackBears]

Running python -m gntp.notifier alternates between:

INFO:__main__:Sending notification [Message] to localhost:23053

and:

 ERROR:__main__:Invalid response: (u'303', u'Growl does not have enough information in (null) to parse')

In our production code using gntp, a third alternating message occurs:

ERROR:gntp.notifier:Invalid response: (u'400', u'Unsupported encryption type, NONE@/\x07')

There's no pattern to how these messages are sent - multiple fails, then a success.

[kfdm]

Is this similar to #53 "Some intermittent connection errors on 10.9 Mavericks (multiple errors)" ?

[BlackBears]

Closing with reference to #53