How to install Python on Ubuntu

Mostly Python comes pre-installed on most of the Ubuntu Linux distributions, but if you have something that's the bare minimal setup, you may not have it installed and when you try to run python command it will give you errors!

# python
bash: python: command not found

# python3
bash: python3: command not found

Installing Python 2.x on Ubuntu

In order to install Python version, you can make use of the command,

 # apt-get install python

 # python
Python 2.7.18 (default, Mar  8 2021, 13:02:45) 
[GCC 9.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 

Installing Python 3.x on Ubuntu

In order to install Python 3 version, you can make use of the command,

 # apt-get install python3

# python3
Python 3.8.10 (default, Nov 26 2021, 20:14:08) 
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.