Yes, there's a confirmed typo in filling.py. A patch has already been created that fixes the SintaxError exception. I, myself, created the patch. It also fixes inspection.py so that WIT works on Python 3.x. The patch was added as an attachment to "WIT runtime bug" subject of this mailing list. 
Thanks. Not sure it got noticed.
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On Monday, June 3, 2013 1:06:51 AM UTC-5, Boštjan Mejak wrote:
Yes, there’s a confirmed typo in filling.py. A patch has already been created that fixes the SintaxError exception. I, myself, created the patch. It also fixes inspection.py so that WIT works on Python 3.x. The patch was added as an attachment to “WIT runtime bug” subject of this mailing list.
