checkpass.py

import requests
import hashlib
import sys
def request_api_data(query_char):
    url="https://api.pwnedpasswords.com/range/" + query_char
    res=requests.get(url)
    if res.status_code !=200:
        raise RuntimeError(f'Error fetching: {res.status_code}, check the api and try again')
    return res
def get_password_leaks_count(hashes, hash_to_check):
    hashes=(line.split(':') for line in hashes.text.splitlines())
    for h, count in hashes:
        if h==hash_to_check:
            return count
    return 0
def pwned_api_check(password):
    sha1password=hashlib.sha1(password.encode('utf-8')).hexdigest().upper()
    first5_char, tail=sha1password[:5],sha1password[5:]
    response=request_api_data(first5_char)
    return get_password_leaks_count(response,tail)
    #Check password if it exists in API response
def main(args):
    for password in args:
        count=pwned_api_check(password)
        if count:
            print(f'{password} was found {count} times... You should probably change your password')
        else:
            print(f'{password} was NOT found. Carry on!')
    return 'done!'
if __name__=='__main__':
    main(sys.argv[1:])