Python: Confused with list.remove

Question

I\'m very new to Python, so sorry for the probably simple question. (Although, I spent now 2 hours to find an answer)

I simplified my code to illustrate the problem

Answer 1

eva and side refer to the same list.

If you want to have a copy of the list:

eva = side[:]

You can read more about copying lists in this article: Python: copying a list the right way

Edit: That isn't the only way to copy lists. See the link posted in the first comment of this answer.