Question

I'm trying to make a password checker in python. Is there a way of preventing a user from entering 2 consecutive lower case characters without using regex? Would prefer the program to take input from the user. Thanks

Answer 1

Yes, you can prevent user from entering 2 consecutive lower case characters without using regex.

Traverse the password string given by user by using for loop in range from 1 to length of password string. You can define password_checker() function like :

def password_checker(password):

val= True

for x in range(1, len(password)):

if ord(password[x-1])>=97 and ord(password[x]) <=122:

print("No 2 consecutive lowercase alphabet are allowed)

val= False

break

""" you can add more conditions here"""

if(val):

return val

#Main method

def main():

password= input()

if(password_checker(password)):

print("Valid Password")

else:

print("Invalid Password")

# Driver code

if __name__ == '__main__':

main()