Problem with house-password auto check.

I would like to give some feedback about ...

From: http://www.checkio.org/mission/house-password/solve/

HTTP_USER_AGENT:

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/601.3.9 (KHTML, like Gecko) Version/9.0.2 Safari/601.3.9

My test code runs through every example I through at it but for some reason fails the automated check, please see attached screen shot. When i run through the series of aaaa's as a password my code returns "Fail" but the check results state my program returns "True" which it does not.

I'm about 99% sure there is some bug somewhere and I don't believe it's in my code. Please Help!

Regards

Joe