Choose your flavour ;-) - see above

if it works, don't touch it!

damn it, guess I can't get it to run all the tests before timing out. Thanks for checking, I'll have to keep working on it :/

I have to disagree on that one:
Using the fastest fork of the current most upvoted solution from @Blind4Basic, this solution is achieving the same performance on batches of 3000 tests - 570ms in average.
You can certainly stop to iterate earlier but linear complexity is the best you can achieve.
Also relying on Python builtins is certainly clearer (and usually faster) than hand-written loop logic.

Anyways, thanks for the compliment ;-)

Solutions are not revalidated automatically when language version changes, because it would be too much work for servers. It can be revalidated manually, or when the code of the Python version of the kata changes.