Update Python Version

@Glimpse Here is a short tutorial to update your python version 3.10

@page [ How To Install Python 3.10 on Ubuntu 20.04|18.04 ]

lets start with

sudo apt update
sudo apt install python3.9

You can call this python version now in the terminal with $python3.9 but it is not the main python version on your system,yet. $ python3 --version

will give you the old version, because it is the "first" python on your system. We have to change it to the right alternative version. sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.[old-version] 1

Now we add the new version as an alternative sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.9 2

type the following command to configure the priority status of the versions:

sudo update-alternatives --config python3

with the terminal output

[ source ]

If you are not planning to use the old version of Python, remove the symlink that contained the previous Python 3 version with:

$ sudo rm /usr/bin/python3

and create a new symlink:

sudo ln -s python3.9 /usr/bin/python3

python3 --version

you are done. READY to rock python!