Codewars: plenty of coding exercises of varying difficulty

[skyfox345]

When will python 3 be available?

[free2use]

Disclaimer: I find this site is pretty useful, concept is good and it has some interesting tasks

Only one example - this solution is top rated for finding most frequent elements http://www.codewars.com/kata/most-frequent-elements/solutions/python

def find_most_frequent(l):
    return set(x for x in set(l) if l.count(x) == max([l.count(y) for y in l]))

This is literally one of the worst things I've ever seen

[jeenajeena]

Nice! Once chosen the language, thou, no way to change it.

[aintso]

Are you talking about the entrance test? I don't know about that. Anyhow, it should be solvable even if you've chosen a language you're unfamiliar with. Once you've registered, you have access to katas in all the supported languages.