ModuleNotFoundError: No module named 'distutils.util' after upgrading to Ubuntu 20.04

After upgrading to Ubuntu 20.04 I started receiving this error

ModuleNotFoundError: No module named ‘distutils.util’
for every pip command I run.

I tried the solutions on ModuleNotFoundError: No module named 'distutils.util' and pip3 is pointing to the wrong version of python but nothing seems to be working.

Tried this:

python3 -m pip

and:

sudo apt-get install python3-distutils
sudo apt-get install python3-apt

these two commands are telling me these packages are already installed, so I reintalled them but no light at the end of the tunnel.

Any solution for this?

I have a virtual environment running Python 3.6.9.

sudo apt install python3.9-apt