How do method decorators work for access control in Python?

Can you explain how method decorators can be used for access control in Python?

Sure! Method decorators in Python allow you to modify the behavior of a method. For access control, you can use decorators to restrict access based on user roles or permissions.

Can you give me an example of a method decorator for access control?

Absolutely! Here's a simple example:

def requires_admin(func):
    def wrapper(*args, **kwargs):
        if not user_is_admin():
            raise PermissionError("You do not have access to this method.")
        return func(*args, **kwargs)
    return wrapper

@requires_admin
def delete_user(user_id):
    # Code to delete a user
    pass

What happens if a non-admin user tries to call the delete_user method?

If a non-admin user tries to call the delete_user method, the requires_admin decorator will raise a PermissionError, preventing the method from executing.

Are there any built-in decorators in Python for access control?

Python doesn't have built-in decorators specifically for access control, but you can create your own or use libraries like Flask-Login for web applications.