A python function repeats itself twice [duplicate]

The user has to input the correct login information (e.g username = Anna, password = 12345).

When the user's input is correct, the verify_login menu will loop again once. I don't want it to and I don't know how to fix that. Am I not understanding something?

The goal is for the user to input the correct data, and for the login_menu() function to be shown then. Ignore the 'reading.from.user' source code. I've spent a good amount of time on this and it's frustrating.

import reading_from_user

def create_login():
    with open ('Login_data.txt', 'w') as a:
        a.write('Username = Anna\n'
                'Password = 12345')

def verify_login():
    username = reading_from_user.read_nonempty_alphabetical_string(">>>>>>> Please enter your username:")
    password = reading_from_user.read_nonempty_string(">>>>>>> Please enter your password: ")
    if username != 'Anna':
        login_again()
    elif password != '12345':
        login_again()
    else:
        return username, password
username, password = verify_login()  #<--- this should be in the code above

def login_again():
    print("Please try to log in again!")
    verify_login()

def login_menu():
    print('Name:', username)
    print('Password: ', password)

def main():
    create_login()
    verify_login()
    login_menu()

main()