Python – Basic Syntax

Python can be used as both interactive or script mode. 

Interactive Mode – The Interactive mode can be used by starting the interpreter  provided by Python. This can be done by executing the “python” command in the Shell as, 

Executing your first “Hello World “ Program with the Interactive mode is Quite Simple. Enter the below at the command mode provided ( after the >>> )

Print “hello World” 

The Output the command Is displayed there it-self allowing developers to test and debug their snippets of code. To come out of the Interpreter , we can use “CTRL + D” .

Script Mode - Invoking the interpreter with a script parameter begins execution of the script and continues until the script is finished. When the script is finished, the interpreter is no longer active.

Open a file using the VI Editor and enter the below statement and Save as filename.py (Python files have extension.py)

Print “Hello World”

Now invoke the interpreter using the save file as

:) [xprk477@vx181d /tmp]$ python /tmp/hai.py

Hello World