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Altaf Shaikh

BE Engg | Python Dev | Content Writer | Founder of TeachMeBro | Blockchain Dev | Django

Python 3 Installation

February 1st 2020   206

Python 3 Installation
Python 3 Installation

Python 3 Installation & Setup Guide

To get started working with Python 3, you’ll need to have access to the Python interpreter. There are several common ways to accomplish this:

  • Python can be obtained from the Python Software Foundation website at Typically, that involves downloading the appropriate installer for your operating system and running it on your machine.
  • Some operating systems, notably Linux, provide a package manager that can be run to install Python.
  • On macOS, the best way to install Python 3 involves installing a package manager called Homebrew. You’ll see how to do this in the relevant section in the tutorial.
  • On mobile operating systems like Android and iOS, you can install apps that provide a Python programming environment. This can be a great way to practice your coding skills on the go.

Alternatively, there are several websites that allow you to access a Python interpreter online without installing anything on your computer at all.

GOOGLE NOTEBOOK - It is an online Jupyter Notebook, here you can run python code and as well as install external libraries.

  • To setup Python3 Notebook
  • Click on File and click on New Python3 Notebook

REPL.IT - Online Python3 Interpreter for writing programs

Python 3.6 Installation Linux (Ubuntu):

Install the following dependencies:

$ sudo apt-get update
$ sudo apt-get install build-essential checkinstall
$ sudo apt-get install libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev
  • Go to Download Python page on and click Download Python 3.6.4 (You may see different version name).
  • In the terminal, go to the directory where the file is downloaded and run the command:

    $ tar -xvf Python-3.6.4.tgz


  • This will extract your zipped file. Note: The filename will be different if you've downloaded a different version. Use the appropriate filename.

  • Go to the extracted directory.

    $ cd Python-3.6.4


  • Issue the following commands to compile Python source code on your Operating system.

    $ ./configure
    $ make
    $ make install


  • Open Sublime text. To create a new file, go to File > New File (Shortcut: Ctrl+N).

  • Save the file with .py file extension like: or

  • Write the code and save it (Ctrl+S or File > Save). For starters, you can copy the code below:

    print("Hello, World!")


  • This simple program outputs "Hello, World!"

  • Go to Tool > Build (Shortcut: Ctrl+B). You will see the output at the bottom of Sublime Text. Congratulations, you've successfully run your first Python program.

Install and Run Python in Windows

  • Go to Download Python page on and click Download Python 3.6.4 (You may see different version name).
  • If your computer is running a 64-bit version of Windows, download the Windows x86-64 executable installer. Otherwise, download the Windows x86 executable installer. After downloading the installer, you should run it (doubleclick on it) and follow the instructions there.
  • One thing to watch out for: During the installation you will notice a window marked "Setup". Make sure you tick the "Add Python 3.6 to PATH" checkbox and click on "Install Now".
  • When Python is installed, a program called IDLE is also installed along with it. It provides graphical user interface to work with Python.
  • Open IDLE, copy the following code below and press enter.

    print("Hello, World!")


  • To create a file in IDLE, go to File > New Window (Shortcut: Ctrl+N).
  • Write Python code (you can copy the code below for now) and save (Shortcut: Ctrl+S) with .py file extension like: or print("Hello, World!")
  • Go to Run > Run module (Shortcut: F5) and you can see the output. Congratulations, you've successfully run your first Python program.

Install and Run Python using PyCharm


Install and Run Python using Anaconda


Introduction to Prompt Window

You now should see a white or black window that is waiting for your commands.

Prompt: Linux OS (Ubuntu)

If you're on Linux, you probably see $ , just like this: terminal


To run Python script

$ python3

For pip3:

$ sudo apt-get -y install python3-pip

$ pip3 install package_name

Prompt: Windows OS

On Windows, it's a > sign, like this: command-line


To run Python script

> python

For pip:

> pip install package_name

To check the installed version of Python

For Windows

> python --version
Python 3.6.4

For Linux

$ python3 --version
Python 3.6.4

Using the Python Shell

Before starting to write programs, you ’ ll need to learn how to experiment with the Python shell. For now, you can think of the Python shell as a way to peer within running Python code. It places you inside of a running instance of Python, into which you can feed programming code; at the same time, Python will do what you have asked it to do and will show you a little bit about how it responds to its environment. Because running programs often have a context — things that you as the programmer have tailored to your needs — it is an advantage to have the shell because it lets you experiment with the context you have created.

In Windows cmd prompt

> python

To exit
>>> exit()

In Linux Terminal

$ python3

To exit
>>> exit()