Object Oriented Programming in Python
Learn basics of OOP in Python with this simple program
https://interviewbuddies.com/
The video starts with explaining what objects and classes are in Python. In Python, everything is an object, and you can create objects using classes. A class is a blueprint for creating objects. The video shows a sample class called car, which has two functions: init and display_info. The init function is a special method that initializes new instances of the class. The display_info function takes a self object and prints the details about the car.
Then the video explains how to create instances of a class. Once you have a class, you can create objects using the class name and the instance constructor. The video shows an example of creating two objects from the car class.
Next, the video covers how to access the attributes and methods of an object using dot notation. You can access attributes and methods using the dot notation. For example, you can call the display_info function using the dot notation and call the values of the instance variables directly.
Inheritance is another important concept in OOP. Inheritance allows one class to inherit attributes and methods from another class. The video shows an example of creating a subclass called ElectricCar from the Car class. The ElectricCar class inherits all the attributes and methods from the Car class and adds a new attribute called battery_life.
The video also briefly explains encapsulation and polymorphism. Encapsulation is the building of data and methods that operate on the data in a single unit. Polymorphism is the ability to use the same method name for different classes.
In conclusion, object-oriented programming provides a structured approach to software development. It promotes code usability, modularity, and scalability by understanding class objects, inheritance, polymorphism, encapsulation, etc. You can build complex applications more efficiently and easily maintain them by understanding these concepts.
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