Lists

At the end of the last lesson, you saw how the for loop gave you the power to loop through a list of items. In this lesson, you’ll learn more about working with lists, and see how lists and loops together make for powerful programming patterns.

You’ll also focus on problem-solving using loops, and practice breaking problems down into pieces so that you can find solutions step by step.

Topics covered

Here's a preview of what you'll learn this week:

• Lists store multiple pieces of data, like [1, "hello", [ "another list" ], False]
• You access list elements by their index, which starts at 0, like my_list[0]
• You can change list contents by assigning at an index, appending, or removing elements
  • assigning: my_list[0] = 5
  • appending my_list.append(10)
  • removing my_list.pop(2)
• You can solve many problems (like the ones below) by updating a variable at each step in a loop
  • total and average
  • maximum and minimum
  • finding and filtering