print ('Welcome to core manager 8.3. please log in.' Login message
usernames = ['admin'] Login system
passwords = ['admin']


class Log:

    def __init__(self, username, password):
        self.username = username
        self.password = password
        print(self.username)
        print(self.password)
        if self.username in usernames:
            self.checkPass()
        else:
            self.badUser()

    def loginSuccessful(self):
        print ("Welcome, Admin!")

    def checkPass(self):
        if self.password in passwords:
            self.loginSuccessful()
        else:
            self.badPass()

    def badUser(self):
        print("Username does not match, please try again.")

    def badPass(self):
        print ("Password does not match, please try again.")

username = input("Please enter your username: ")
password = input("Please enter your password: ")


login = Log(username, password)