After Update 4.7 to 4.8 can't create projects, or work with existing ones.(SOLVED)

[listy]

I think, latest fixes to security.py have broken something.
I recommend You to go to github, and report this issue with stack trace.

(the faster fix, would be to try getting little older security.py, and replace it)

(those warnings about missing stypes i think you can just ignore)