How can you implement user authentication in Django?

Django comes with a built-in authentication system that manages user accounts, groups, and permissions. It allows you to handle user login, logout, and registration.

To implement authentication, follow these steps:

1. Use Django's authenticate() and login() methods.
2. Set up URLs for login and logout views.
3. Utilize the UserCreationForm for registration.

Example of a login view:

from django.contrib.auth import authenticate, login

def login_view(request):
    username = request.POST['username']
    password = request.POST['password']
    user = authenticate(request, username=username, password=password)
    if user is not None:
        login(request, user)