Python

Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. It was created by Guido van Rossum during 1985- 1990. Like Perl, Python source code is also available under the GNU General Public License (GPL). This tutorial gives enough understanding on Python programming language.
Python has been an object-oriented language since it existed. Because of this, creating and using classes and objects are downright easy. This chapter helps you become an expert in using Python's object-oriented programming support.
If you do not have any previous experience with object-oriented (OO) programming, you may want to consult an introductory course on it or at least a tutorial of some sort so that you have a grasp of the basic concepts.

Class − A user-defined prototype for an object that defines a set of attributes that characterize any object of the class. The attributes are data members (class variables and instance variables) and methods, accessed via dot notation.
Class variable − A variable that is shared by all instances of a class. Class variables are defined within a class but outside any of the class's methods. Class variables are not used as frequently as instance variables are.
Data member − A class variable or instance variable that holds data associated with a class and its objects.
Function overloading − The assignment of more than one behavior to a particular function. The operation performed varies by the types of objects or arguments involved.
Instance variable − A variable that is defined inside a method and belongs only to the current instance of a class.
Inheritance − The transfer of the characteristics of a class to other classes that are derived from it.
Instance − An individual object of a certain class. An object obj that belongs to a class Circle, for example, is an instance of the class Circle.
Instantiation − The creation of an instance of a class.
Method − A special kind of function that is defined in a class definition.
Object − A unique instance of a data structure that's defined by its class. An object comprises both data members (class variables and instance variables) and methods.
Operator overloading − The assignment of more than one function to a particular operator.

Audience

This tutorial is designed for software programmers who need to learn Python programming language from scratch.

Prerequisites

You should have a basic understanding of Computer Programming terminologies. A basic understanding of any of the programming languages is a plus.