d = {"d": 0, "c": 99, "b": 1, "e": 30, "a": 20}
d1 = sorted(d.items())
print(d1) # [('a', 20), ('b', 1), ('c', 99), ('d', 0), ('e', 30)]
d2 = sorted(d.items(), key=lambda x: x[1])
print(d2) # [('d', 0), ('b', 1), ('a', 20), ('e', 30), ('c', 99)]