Extending builtin classes in python

Описание: Python is a versatile and flexible programming language that allows you to extend its built-in classes to add custom functionality. This tutorial will walk you through the process of extending Python's built-in classes with code examples to illustrate the concepts.
Extending built-in classes can be useful when you want to:
Let's start by extending the list class to create a custom list class with some additional functionality.
In this example, we created a CustomList class that inherits from the built-in list class and added two custom methods: sum() and average(). Now, we can use these methods on instances of CustomList to perform specialized operations.
Next, let's extend the str class to create a custom string class with a method to count the occurrences of a specific substring.
Here, we extended the str class to create CustomString and added the count_substring() method to count occurrences of a substring within the string.
Lastly, let's extend the int class to create a custom integer class with a method to check if the integer is even or odd.
In this example, we extended the int class to create CustomInt and added the is_even() method to check if the integer is even or odd.
Extending built-in classes in Python allows you to customize the behavior of standard classes to meet your specific needs. While this tutorial covered extending list, str, and int, you can extend other built-in classes in a similar manner. Just remember to use this feature judiciously, as it can lead to more readable and maintainable code when applied thoughtfully.
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