That's what I did, but spaced out to make it more readable.

Interesting indeed, maybe also "Pythonic", but not the functional programming approach that most likely was envisioned by the author of the kata.

Very nice solution !!! Awesome)

This looks nice, but by defining 'string.lower()' within the for loop instead of a variable outside of it requires python to perform the lower function during each iteration of the for loop instead of just once if written outside the for loop. Which imo makes this a lesser candidate for 'best practice' than other solutions.

This should be a 7 on Python IMO, not a 6. Too easy.

My solution was similar to yours. Could simplify your return and list comprehension.

Duplicate issue above

I am late with this comment. But this kata is quite suitable with 7 kyu rank. The only thing that can be difficult is to read the description correctly.

@sean_little the description states: 'If the list is made up of only negative numbers, return 0 instead.' The 'max' would end up being a 0 and thus 0 is returned.