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9 Introduction to Python
Your Aim
to learn about:
Python Features of Python
Installing Python IDLE Programming in Python
Input and Output Variables in Python
Data Types Comments in Python
Operators Precedence of Operators
Sample Programs
Have you played games on a mobile device or a computer. Have you seen a website? How is it
developed? Let us find out the answers of these questions.
These games and websites are programs or applications developed by using a programming
language. There are a number of programming languages. Some of them are C, C++ and Python.
In this chapter, we will learn about Python and how to develop programs in Python.
PYTHON
Python is a popular high-level programming language. It is a powerful language used for
general-purpose programming. Python was developed by Guido van Rossum. He began
developing Python in 1989. Python is extensively used to develop:
✶ games ✶ websites
✶ Graphical User Interface programs ✶ web applications
FEATURES OF PYTHON
✶ Easy to code: it is very easy to write programs in Python as compared to other high-level
programming languages. This is because the language used to write Python code is similar
to the English language.
✶ Open-source language: Python is a free and open-source programming language. An
open-source language is one which can be easily improved and distributed by anyone. You
can download Python for free and use it on any operating system such as Windows, Mac or
Linux.
✶ Object-Oriented: Python has an object-oriented approach. This means that the "programs
are designed using objects and classes, which interact with each other.
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