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Python Python Collections (2016, retired 2019) Lists Removing items from a list

Insert/Remove Challenge

Pretty stumped on how to do this challenge :(

messy_list = ["a", 2, 3, 1, False, [1, 2, 3]]

# Your code goes below here
x = messy_list.pop(1)
messy_list.insert(0, x)

1 Answer

Oszkár Fehér
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Oszkár Fehér
Treehouse Project Reviewer

Hi Ali, The pop() method takes an index argument, so in your case it will pop out the 2nd element from the list, the 2. The list 1st element is not equal with the first index, it's index 0.

['a', 2, 3, 1, False, [1, 2, 3]]
  0   1  2  3     4        5

You need to take out the 4th element, which is 1. the rest it should be easy from here. Keep up and happy coding!