List Functions The append() function is used to add an item to the end of the list: nums = [1, 2, 3] nums.append(4) print(nums) => [1, 2, 3, 4] - insert() inserts a new item at the given position in the list: words = ["Python", "fun"] words.insert(1, "is") print(words) => ['Python', 'is', 'fun'] - index() finds the first occurrence of a list item and returns its index. letters = ['p', 'q', 'r', ..