Installing Python 3.10
Firstly, update your repository listings and system packages.
$ sudo apt update && sudo apt upgrade -y
Once that is done we can proceed to install the required dependencies.
$ sudo apt install software-properties-common -y
Then add the deadsnakes PPA to the APT Sources List.
$ sudo add-apt-repository ppa:deadsnakes/ppa
You will see the following output:
..........
To install 3rd-party Python modules, you should use the common Python packaging tools.
For an introduction into the Python packaging ecosystem and its tools, refer to the Python Packaging User Guide:
https://packaging.python.org/installing/
Sources
=======
The package sources are available at:
https://github.com/deadsnakes/
Nightly Builds
==============
For nightly builds, see ppa:deadsnakes/nightly https://launchpad.net/~deadsnakes/+archive/ubuntu/nightly
More info: https://launchpad.net/~deadsnakes/+archive/ubuntu/ppa
Press [ENTER] to continue or ctrl-c to cancel adding it
After this we can install Python 3.10.
sudo apt install python3.10
Done!