Put the marks [72, 85, 64, 90, 58] in order, first with the smallest first, then with the biggest…

• marks.sort() gives [58, 64, 72, 85, 90].
• marks.sort(reverse=True) gives [90, 85, 72, 64, 58].

Note. sort() changes the list itself. If you want to keep the first list, use sorted(marks), which gives a new sorted list.