ubuntu 20.04 python 3.6 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: python download for ubuntu 20.04
sudo apt install python3.9
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-get update
sudo apt-get install python3.7
sudo apt install python3.9