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 access a private variable from outside the class?

It's generally not recommended, but you can access it using the class name, like instance._variable. However, it's better to use getter methods.

Can you show me an example of a class with private variables?

Sure! Here's a simple example:

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

    def get_private_var(self):
        return self._private_var

You can access _private_var through the get_private_var method.

What happens if I don't use the underscore?

If you don't use the underscore, the variable is considered public and can be accessed from outside the class without any restrictions.