Prerequisites

• Operating System : Ubuntu 18

Steps

Note: By default most Ubuntu 18 system have Python installed.

01. Open a terminal window

02. Check if Python is already installed. Execute the following to determine.

$ python
python3.7

A message will be shown if Python is available. In the following case, it is not yet installed.

03. Update the package list

$ sudo apt-get update

04. Wait for the operation to complete. Then run the command to install Python 3.7.  This also works for lower version of Python 3 like 3.6.

$ sudo apt-get install python3.7 -y

05. Verify that Python is installed by accessing the Python shell.

python3.7

06. Execute a Python application by checking the current time

from datetime import datetime
datetime.now

07. You have now installed Python on your system.

Commands Mode Only

# At a CLI interface
$ sudo apt-get update
$ sudo apt-get install python 3.7 -y

# Verify using Python Shell 
$ python3.7
from datetime import datetime
datetime.now()

exit()

Benefits of Python

• Easier syntax compared with other programming languages
• Less coding, less boiler-plate code, compared with other languages
• Readability, closer to pseudo-code
• Object-oriented programming, same concepts as other OOP languages
• Free.