L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)] def by_name(t): return t[0] def by_score(t): return -t[1] L2 = sorted(L, key=by_name) print('sorted by name :' , L2, ' ') L3 = sorted(L, key=by_score) print('sorted by score :' , L3)