How do I create a property decorator in Python?

How do I create a property decorator in Python?

To create a property decorator in Python, you can use the built-in property() function. It allows you to define methods in a class that can be accessed like attributes.

Can you show me a simple example?

Sure! Here's a basic example:

class Person:
    def __init__(self, name):
        self._name = name

    @property
    def name(self):
        return self._name

    @name.setter
    def name(self, value):
        self._name = value

In this example, name is a property that gets and sets the _name attribute.

What if I want to add validation in the setter?

You can add validation logic inside the setter method. For example:

@name.setter
def name(self, value):
    if not isinstance(value, str):
        raise ValueError('Name must be a string')
    self._name = value

This will ensure that only string values can be assigned to the name property.

Thanks! This is really helpful.

You're welcome! If you have any more questions about decorators or Python, feel free to ask!