Question

Programowanie z Pythonem-Zadanie 2
Write a program to check the validity of password input by users.
-At least 1 letter between [a-z] and 1 letter between [A-Z].
-At least 1 number between [0-9].
-At least 1 character from [$#@].
-Minimum length 6 characters.
-Maximum length 16 characters.

Expected output:

What is your password?
Password1
Invalid password format.
or:
What is your password?
P@ssw0rd
Registration successful.

Answer 1

Odpowiedź:

import re  

while True:

   user_input = input("What is your password: ")  

   check_1 = len(re.findall('[a-z]',user_input))

   check_2 = len(re.findall('[A-Z]',user_input))

   check_3 = len(re.findall('[0-9]',user_input))  

   check_4 = len(re.findall('[[email protected]#$%^&*?]',user_input))  

   check_5 = len(user_input)

   validation = [check_1, check_2,check_3,check_4]

   

   if (all(validation) & (5 < check_5 < 17))== True:

       print('Registration successful')

       break        

   else:

        print('Opps, Invalid password format, try again.')

Wyjaśnienie:

check_1-4 sprawdzanie czy dane znaki zawiera nasze hasło,

check_5 sprawdza długość naszego hasła,

validation = lista checków od 1 do 4, wywołując na niej funkcję all() zwraca True gdy będzie każdy check poprawny.