python class variable private
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In Python, class variables are variables that are shared by all instances of a class, while private variables are those that are intended to be used only within the class itself. Using class variables and private variables can help organize and encapsulate data in your Python classes. In this tutorial, we'll explore how to create and use class variables, as well as how to implement private variables in Python classes.
Class variables are shared among all instances of a class. They are defined outside of any method in the class and are accessible using the class name or an instance of the class.
In this example, num_cars is a class variable that keeps track of the total number of cars created. Whenever a new instance of the Car class is created, the class variable is incremented.
Private variables in Python are declared by prefixing the variable name with two underscores (__). These variables can only be accessed within the class and are intended to be used for internal class implementation.
In this example, __account_number and __balance are private variables. They are accessed using public methods (get_balance, deposit, and withdraw) to encapsulate the internal details of the class.
By using class variables and private variables, you can create more organized and encapsulated classes in Python, enhancing code readability and maintainability.
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