check_sum.py

import hashlib

def check_sum(data):
    # if type dict need to cast to string
    if type(data)==type({}):
        data = str(data)
    # lib require to encode to unicode before hash
    hash_object = hashlib.md5(data.encode())
    return hash_object.hexdigest()


#test
print(check_sum('{"key":"value"}'))