ubuntu 20.04 install python 3.9 code example

Example 1: install python3.7 ubuntu 20.04

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-get update
sudo apt-get install python3.7

Example 2: how to install python 3 on ubuntu 20.04

sudo apt install -y python3-pip

Example 3: how to install python 3 on ubuntu 20.04

sudo apt update
sudo apt -y upgrade