this is the way.

did the same lol

no he mean he use "join" method while he can do this like this

why you when to join first?

Ditto

good

nice

is it possibly because you don't have a space between the comma and string in the def_string(repeat, string):

I am new so I am ony throwing out a guess.

Name of your method is different than the name of the method used in test cases. That's why you get an error.
Actually reading an error message really does help!

Write what is your error

Thanks! That is definitely an interesting feature.

It's not for all languages, no. But Python is not the only one where it works either.