Question

Password check, lab2pr1.py Many websites these days require that a password
is between 8 and 20 characters, doesn’t have spaces, and satisfies the following
conditions: contain at least one uppercase letter, contain at least lowercase letter,
contain at least one number, and contain at least one special symbol character
(”!?,.;:$# &”). Write a program that keeps asking the user to enter the password
until they enter one that satisfies the requirements.
Please enter a password:
@Tulane2020
Please enter a password:
#Tulane2020
Password accepted

use python

Answer 1

import re
#checks for uppercase
def upperCheck(password):
return any(x.isupper() for x in password)
#checks for lowercase
def lowerCheck(password):
return any(x.islower() for x in password)
#checks for digit
def digitCheck(password):
return any(x.isdigit() for x in password)
#checks for special char
def specialCheck(password):
regex = re.compile('[!?,.;:$#&]')
return regex.search(password) != None

while(True):
password=input("Enter password: ")
if upperCheck(password) and lowerCheck(password) and digitCheck(password) and specialCheck(password) and len(password)>= 8 and len(password)<=20:
print(password," is valid password")
break
else:
print(password,"is invalid password.Try again..")
  

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