Question

How do I remove an element from a list by index?

I found list.remove(), but this slowly scans the list for an item by value.

Answer 1

Use del and specify the index of the element you want to delete:

>>> a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] >>> del a[-1] >>> a [0, 1, 2, 3, 4, 5, 6, 7, 8] 

Also supports slices:

>>> del a[2:4] >>> a [0, 1, 4, 5, 6, 7, 8, 9] 

Here is the section from the tutorial.