uh, thank you for your reply! i might actually take this kata down for some time to rethink my solution and generation of the test cases in order to fix this problem and prevent them from occuring!

i hate the op so much for not preloading a dictionary with letters! :D

Thanks, lol :)

Thank you for the contribution!

Approved, thank you for your work!

Please, try it now, I belive the problem has been fixed

Thanks for your notice, I'm already fixing this issue!

And hello again,

I strongly believe that the problem you faced has been fixed (and some other small fixes and correctiontions have been applied). Have a try now! I am sorry that it took way more time to look into it than it actually required to fix the problem.

According to PEP 8, it's a bad idea to use lambda statements instead of usual def-functions, even though it might look more impressing

You're welcome!

Actually not: when the first student comes, all the doors are closed and he/she opens them. It can be seen on the picture in the details :)

Hey,

Thanks for your message. I'll do my best to fix the problem shortly!

Thank you, have a nice day!