The generation of dictionary from the function is below:

• The function will execute the mysql query

  output = {} def s(a,b,c):output = {a:[b,c]}return output

a,b,c are coming from the database cursor = connection.cursor();cursor.execute(query)

my dictionary return output is below

{'a':['test','10']}
{'b':['test','5']}

How to subtract the values in the dictionary 10 - 5

my code is below

k = []
for i,j in s.items():k.append(j[1])My output is `['10'],['10']`

Suppose your dictionary is called test_dict.

This will give you desired result.

from functools import reduce
result = reduce(lambda x,y: x-y, [int(i[1]) for i in test_dict.values()])