python – Python3 Not working after upgrading to ubuntu 20.04

i’ve just upgraded my OS from ubuntu 18.04 to 20.04 desktop and now python3 is not working. Actually it just seems that there’s no “shortcut” called “python3”, once python 3.8 was indeed installed during the upgrade.

I’ve started suspecting it after failing to open a terminal window with Ctrl+Alt+t, as I know that changes in python defaults afect it.

Does anyone know how to configure the system in the right way? So that things work propperly.

Note:

sudo update-alternatives --config python returns

  0            /usr/bin/python2.7   1         auto mode
* 1            /usr/bin/python2.7   1         manual mode

but sudo update-alternatives --config python3 returns

update-alternatives: error: no alternatives for python3