Chapter-1: Introduction to Python

#SeekhoPython #HMWBAcademy

We are going to start our Seekho Python Journey. I’ll guide you at each step. In this Chapter, we’ll be learning:

1. What is Python?
2. Python Installation.
3. Writing Your First Program in Python.

What is Python?

Python is a widely used high-level programming language for general-purpose programming, created by Guido van Rossum and first released in 1991. Python features a dynamic type system and automatic memory management and supports multiple programming paradigms, including object-oriented, imperative, functional programming, and procedural styles. It has a large and comprehensive standard library.

Two major versions of Python are currently in active use:

• Python 3.x is the current version and is under active development.
• Python 2.x is the legacy version and will receive only security updates until 2020. No new features will be implemented. Note that many projects still use Python 2, although migrating to Python 3 is getting easier.

Python Installation:

If you’re MAC or Unix user, python will be installed by default. For Windows User I’ll recommend the below video to watch.

Verify if Python is installed:

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To confirm that Python was installed correctly, you can verify that by running the following command in your favorite terminal (If you are using Windows OS, you need to add path of python to the environment variable before using it in command prompt):

python --version

Writing First Python Program:

For the Windows User:

Open IDLE from Search. It would look like the following image 1.1

Image 1.1

Now you can write your first line of code in python:

>>> print(“Hello World!”)

Image1.2

Congratulations!!

You have written your first program in python.

For Mac/Unix Users:

Open terminal and Type python

Image1.3

Note: I have given just reference, how you can open python shell in MAC/UNIX, above image is the screenshot of Windows System.

Congratulations!!! You have completed your first step of #SeekhoPython.