python how to remove "list inside" list code example

Example 1: delete element of a list from another list python

l1 = ["a", "b", "c", "d", "e", "f"]
l2 = ["b", "c", "e"]

l1 = [elt for elt in l1 if elt not in l2]
# l1 = ['a', 'd', 'f']

Example 2: remove item from list python

l = list[1, 2, 3, 4]

for i in range(len(list)):
  l.pop(i) # OR "l.remove(i)"