How do I sort a dictionary by value in python 3 ?

>>> x = {1: 2, 3: 4, 4: 3, 2: 1, 0: 0}
 >>> {k: v for k, v in sorted(x.items(), key=lambda item: item[1])}
 {0: 0, 2: 1, 1: 2, 4: 3, 3: 4}