I didn't know until now that you can directly join stuff to a string without introducing a variable. you learn something every day ig.

Best practice for pythonist.

Correct– .sort() works inplace. While that reduces memory overhead, that is bad practice for most functions because of Python's implicit pass-by-assignment mechanic. The function would have the side-effect of sorting the original list, which might or might not cause a very difficult to find bug later.

AFAIK .sort() is method for lists and it doesnt return anything.

awesome !!

yes!

You got advantage of dictionary duplicate updation behaviour .. good one

In 'Kata page' please add tick mark near picture of program language which are resolved.

I am not able to upgrade to red subscription. please tell me the details of what kind of bank cards do i have to carry. when i am using my debit card it shows the transaction cant be done with this card. help me with another payment option or method for the membership.thanks

@anigundar, please try again. The test output should now tell you the expected value.

Now approved.

Elm, R, Racket are now also approved.

All done. Thanks!

Just a note: description was changed at some point

Aw crap. Now I have a big mess on my hands.

Forked it to add some messages with the tests (more like Java version).

Just a note: description was changed at some point and now it includes some links to katas in the stacked balls series, but it seems a little weird it has a link to the same kata, my 2 cents. If you change that, approve the pending translations first, to avoid merging conflicts.

Forked it using also new testing framework.