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4 Variables & Operators in Python

Pre-Processing
Pre-Processing
• Starting Python • Components of Python IDLE Window
• Working with Python IDLE • Data Types in Python
• Declaring and Initialising a Variable • Operators in Python
• Precedence of Operators

Python is an interpreted, object-oriented, high-level programming language for general-purpose
programming. It was developed by Guido van Rossum. Python’s simple, easy-to-learn syntax
emphasises readability and reduces the cost of creation and maintenance of programs.
The standard development environment for Python is called IDLE (Integrated Development and
Learning Environment). It lets a user write, debug, and execute code from the same interface.

STARTING PYTHON
To start Python IDLE:
1. Click the Start button.
The Start menu opens. 2
2. In the list of programs, under Python 3.11, click IDLE
(Python 3.11 64-bit).
Python starts and its IDLE window opens. 1

COMPONENTS OF PYTHON IDLE WINDOW
Let us learn about the components of the Python IDLE window.

Title Bar
Menu Bar

Python
Interpreter

Status Bar

Component Description

Title Bar Displays the version of the Python IDLE and contains the control buttons to
minimise, maximise, and close the window.

Menu Bar Displays menus that contain commands related to a specific set of activities.

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