Login

Lesson 5 of 8 in Coddy's Register Login System Project course.

Now that we can absorb users and register them. It is time create a method for login

Challenge

Easy

Create a method called login(self, username, password) that checks if the users exists in the system, and if it is then it will check if the password matches the password that is stored in the system. if both conditions are met then store the username in the logged_users variable.

If the user logged in print: user logged in successfully.
If the user is not in the system print: user isn't in the system.
If the password doesn't match print: password doesn't match

Try it yourself

class LoginSystem:
    def __init__(self):
        self.users = {}
        self.logged_users = set()
    
    def register(self, username, password):
        if username not in self.users:
            self.users[username] = password
            print("user registered successfully")
        else:
            print("user already exists")

All lessons in Register Login System Project

1Starting from scratch

Introduction How to use a set

2Building the system

Initializing Register

Sign out

3Encryption

Basic password encryption

Final words