Sorting comparator

In Javascript, we have the sort method for arrays. If "a" is less than "b" by some ordering criterion, then we return -1. If "a" is greater than "b" by the ordering criterion, we return 1. This is the basic idea to sort things. We can do the same for Python. In this video, I solve the problem of sorting by a score in descending order and then by name in ascending order.