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Start your free trialMarco Otto
5,342 PointsBummer! You didn't copy `messy_list` to make `clean_list`. But I did!!!
So I did what I was told to do and it keeps telling me that I did not? Or am I wrong?
messy_list = [5, 2, 1, 3, 4, 7, 8, 0, 9, -1]
# Your code goes below here
clean_list = messy_list
clean_list.sort()
1 Answer
Chris Freeman
Treehouse Moderator 68,457 PointsTo make a copy add [:]
at the end. Otherwise they'll point at the same object.