How do I use private variables in Python?

How do I use private variables in Python?

In Python, you can define private variables by prefixing the variable name with an underscore, like this: _variable.

What if I want to make it truly private?

To make a variable truly private, you can use double underscores, like this: __variable. This name mangling makes it harder to access from outside the class.

Can you give me an example of using private variables in a class?

Sure! Here's a simple example:

class MyClass:
    def __init__(self):
        self.__private_var = 42

    def get_private_var(self):
        return self.__private_var

In this example, __private_var is a private variable.

How can I access a private variable from outside the class?

You can access it using the name mangling convention. For example, if your class is MyClass, you can access it like this: my_instance._MyClass__private_var.