#Python program to sort a dictionary by value 
import sys
import operator 
d = {1: 2, 3: 4, 4: 3, 2: 1, 0:0}
print('Original dictionary : ', d)
sorted_d = sorted(d.items(), key=operator.itemgetter(0))
print('Dictionary in ascending order by value: ', sorted_d)
sorted_d = sorted(d.items(), key=operator.itemgetter(0), reverse=True)
print('Dictionary in descending order by value :',sorted_d)
