• bug?

Question related to mission The Most Wanted Letter

 

I would like to give some feedback about ...

i.isalpha() in 'most wanted letter' is not working

From: https://checkio.org/mission/most-wanted-letter/solve/

HTTP_USER_AGENT:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.79 Safari/537.36 Edge/14.14393