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    3               PYTHON PROGRAMMING

                     Your Aim

                      3.1  Basic Programming
                              3.1.1   Writing and Compiling a Program
                           3.1.2  Creating First Program
                           3.1.3  Understanding print() Function
                           3.1.4  Creating Simple Programs
                      3.2  Python Programming – Decision
                           Structure
                           3.2.1  Inputting Values
                           3.2.2  Decision Structure
                           3.2.3  Practice

                      3.1 BASIC PROGRAMMING
                      Programming is the process of writing precise instructions that tell a computer exactly how

                      to perform a task.

                      3.1.1 Writing and Compiling a Program

                      You have learned the basics about Python programming language. In this section, you will
                      learn how to open Python IDLE (Integrated Development and Learning Environment), write
                      a program and execute it.

                      To create and run a Python program, you need to do the following steps:

                      1.   Open IDLE’s editor window to write your program.

                      2.   Save your program with .py extension.
                      3.   Run the program by pressing the F5 key (IDLE automatically compiles it first).

                      Step 1:   Click on Start Button

                      Step 2:   Select the  Python               IDLE

                                                    and you will get

                                 the following screen.

                    30                         KVS DELHI REGION 2025

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