Help-me in this Python code

Question

Why this code isn't printing 1 to 99 and 99 to 1?
https://code.sololearn.com/c6PW35WGpwId/?ref=app

Answer 1

Amazing! Now it's working! Thank you very much :3

Answer 2

When i'm calling the method "num_rev.reverse()" it's reversing "num" as well.

Answer 3

So... It's like i'm giving a nickname to num, not creating a new object, right?

How do i copy num to a new object called num_rev?