in a login interface when i try login with a user supposed to say test123 but nothing

[bowlofred]

You're looping on toggleonoff, but you never change it. Might as well just do a while True: loop.

Instead of saving the result of the username/password inputs, you're passing it to print(). Then you append the result of the print() to the users and passwords list. But the result of print() is always None, so the users and passwords are lost.

This section:

        x = 0
        for user in users:
            if user == loguser:
                print("test123")
            elif x > len(users):
                break
            x=x+1

Could probably be better written as

if loguser in users:
    print("test123")