A python script that tries to crack hash

sha-ttered.py

import hashlib
import string
import sys

hash_name = 'd5787cd36cdf96b5ff9edcfb2461e092a9cbe6e0e15474464346950a5c6b5616'
# random_list = ['a', 'b', 'c', 'd']
random_list = list(string.ascii_lowercase)
length = len(random_list)
lens = 0
print("\nSHA-256")
while lens < length:

    print("\n", lens, random_list[lens])

    for i in random_list:

        word = random_list[lens] + i
        hash = hashlib.sha256(word.encode('utf-8')).hexdigest()

        if hash == hash_name:

            print(word, '--> match found! ', hash)
            sys.exit()

        else:

            print(word, '--> no match')

    lens += 1