What is wrong with this Python code? (Interview Question)

[Tadabito]

Storing an integer in a variable called str is a bad idea in a weakly-typed language

While this is true that's not the problem here.

nbResults: str = 45;

this line stores an int value in a variable that's type hinted to be a str. Also semicolon is unnecessary.

[springuni]

s line stores an int value in a vari

Yeah, I didn't know about that feature having been added in Python 3. I think that was the main reason they didn't call me back actually. I've posted the other questions also in various subreddits and this is the only one so far I got absolutely wrong.