This should work. It could be a version difference. I'm testing it using python3.4 on OS X.
URL from: http://www.checkio.org/mission/even-last/solve/
HTTP_USER_AGENT: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1953.0 Safari/537.36
Created at: 2014/04/23 18:24; Updated at: 2014/04/23 23:46
