tweepy/tweepy — pull request #355 by mike-anderson (2013-09-08 04:52:20+00:00)
Title: Fix for Issue 291

I found that filtering on language alone can only be done through the sample endpoint on the streaming API. This problem was brought up in issue 291, originally caused by twitter not supporting language, but now caused by filter apparently only filtering on track or location.

specifying language in sample seems to fix the problem for me.