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Python Python Collections (Retired) Lists Redux Manipulating Lists

Posted by Ryan Lail
Ryan Lail
4,386 Points

Why doesn't this code work?

So this is my code:

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

# Your code goes below here
the_list.insert(0, the_list.pop(5))
Ryan Lail
Ryan Lail
4,386 Points

The question says: Challenge Task 1 of 3

Move the 1 to position 0. You can do this in one step with .pop() and .insert().

1 Answer

Brandon Wall
Brandon Wall
5,512 Points
Brandon Wall
Brandon Wall
5,512 Points 
the_list = ["a", 2, 3, 1, False, [1, 2, 3]]

# Your code goes below here
the_list.insert(0, the_list.pop(3))  #the 4th element of this list is the 1. Therefore we call index 3 because indices start at 0

If we wanted to call the 1 from the sub-list we would need to use index [5][0]. We would be referencing 6th element of the first list, 1st element of the sixth element or index 0.