Python program to check the validity of a Password

Configurare noua (How To)

Situatie

In this program, we will be taking a password as a combination of alphanumeric characters along with special characters, and check whether the password is valid or not with the help of few conditions.

Primary conditions for password validation :

  1. Minimum 8 characters.
  2. The alphabets must be between [a-z]
  3. At least one alphabet should be of Upper Case [A-Z]
  4. At least 1 number or digit between [0-9].
  5. At least 1 character from [ _ or @ or $ ].

Backup

Examples:

Input : R@m@_f0rtu9e$
Output : Valid Password

Input : Rama_fortune$
Output : Invalid Password
Explanation: Number is missing

Input : Rama#fortu9e 
Output : Invalid Password
Explanation: Must consist from _ or @ or $

Solutie

import re
password = "R@m@_f0rtu9e$"
flag = 0
while True:  
    if (len(password)<8):
        flag = -1
        break
    elif not re.search("[a-z]", password):
        flag = -1
        break
    elif not re.search("[A-Z]", password):
        flag = -1
        break
    elif not re.search("[0-9]", password):
        flag = -1
        break
    elif not re.search("[_@$]", password):
        flag = -1
        break
    elif re.search("\s", password):
        flag = -1
        break
    else:
        flag = 0
        print("Valid Password")
        break
 
if flag ==-1:
    print("Not a Valid Password")

Output:

Valid Password

Tip solutie

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