Styjun

... where the password must fulfil the following criteria:

• more than 8 characters


• at least 1 upper and 1 lower case letter, 1 digit and 1 special symbol


• does not contain the username

def enterUsername():
 username = input("Enter username: ")
 username = enterUsername()

 def enterPassword():
 LENGTH = 8
 password = input("Enter password: ")
 upCase = False #indicate if password has at least 1 upper
 lowCase = False #indicate if password has at least 1 lower
 digit = False #indicate if password has at least 1 digit
 special = ['!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '-', '+', '_', '=']
 for char in password: #iterate on each character of password (go through every character, for each character in the string)
 if char.isupper(): #if character is in upper, set upCase to 
 upCase = True
 if char.islower(): #if character is in lower, set lowCase to
 lowCase = True
 if char.isdigit(): #if character is a digit, set digit to 
 digit = True
 for spechar in special:
 if char == spechar:
 special = True
 length = len(password) #get length of password
 strong = upCase and lowCase and digit and special and length > LENGTH #strong would be true if all the conditions hold
 while True:
 password = input("Enter password: ")
 if not strong:
 print("Your password is weak.")
 else:
 print ("Your password is strong enough.")
 break
 return password

 enterPassword()

this is a tester that work well for me:

password = input('Enter your password here : ')
print('n')

from re import *

lower_match = compile(r'[a-z]').findall(password) # Finding if the password contains lowecase letters.
upper_match = compile(r'[A-Z]').findall(password) # Finding if the password contains uppercase letters.
symbol_match = compile(r'[|"|'|~|!|@|#|$|%|^|&|*|(|)|_|=|+|||,|.|/|?|:|;|[|]||<|>]').findall(
 password) # Finding if the password contains special characters.
number_match = compile(r'[0-9]').findall(password) # Finding if the password contains numbers.

if len(password) < 8 or len(lower_match) == 0 or len(upper_match) == 0 or len(symbol_match) == 0 or len(
 number_match) == 0:
 print('Your password is weak ! ')

elif len(password) >= 8:
 print('Your password is strong ! ')

elif len(password) >= 16:
 print('Your password is very strong ! ')