For Ubuntu 18.04 and 20.04 I need to install python 3. Currently 3.9.5 as I wrote this post. I watched some videos on youtube and read some tutorials. There are two different approaches
One
sudo apt install python3 [python-pip]`
Two
sudo apt install software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt install python3.9
The situation is that about “deadsnakes” team says:
- Team for maintaining unofficial Python packages for different releases of Ubuntu.
And in ppa:deadsnakes - New Python Versions says:
This PPA contains more recent Python versions packaged for Ubuntu.
Disclaimer: there's no guarantee of timely updates in case of security problems or other issues.
If you want to use them in a security-or-otherwise-critical environment (say, on a production server),
you do so at your own risk.
Update Note
Please use this repository instead of ppa:fkrull/deadsnakes.
Observation: The tutorials and videos based on ppa:deadsnakes are <1 year ago (they are not neither very old nor outdated) and even are for Ubuntu 20.04 and works. Question 1: When could be mandatory take the ppa:deadsnakes approach?
So thinking in have always the latest, stable and secure python installed. Question 2: what approach is the correct?
I am not sure, but seems there is no an official guide to install Python (latest version 3.9.5) on Ubuntu. Question 3: Is there an official (latest-stable-secure) Python repository for PPA?.
For future
So if Python at https://www.python.org/ releases the 3.9.6 version, then if sudo apt update upgrade is executed that new release must be installed
