@property.setter

Let's go back to the User class with a private attribute password that cannot be changed in subclasses. How can we access the private password? Let's create a property that returns the private password:

Currently, we can retrieve the password but cannot change it using the regular syntax. To be able to set a value for a property, we need to use the @{property name}.setter decorator, where {property name} is the name of the property we have created (the one for which we want to set a setter).

The @password.setter decorator indicates that this method should be invoked whenever the password property is assigned a new value. The second password method is decorated by @password.setter (where password is the name of the property method) and set up a new password via assignment (=) operation. The password setter method takes two parameters: self (referring to the instance of the class) and new_password (representing the new value being assigned to the password attribute).

Let's choose the following password restrictions:

1. The password must be of a type string.
2. Password length must be greater than 8.

If the new password does not meet the requirements, the corresponding messages will be printed.

This code ensures that whenever a new value is assigned to the password attribute, it undergoes validation checks for length and type, providing appropriate feedback if the new password does not meet the requirements.