Pycharm - Python packaging tools not found
I encountered this error when upgrading my Ubuntu to a newer version and it auto-installed an updated version of python and set it as the primary python version (3.8 --> 3.10).
I deleted the venv folder for the project and created a new one using the current python version (3.10) which seemed to resolve the problem.
Run this command and you should be able to install the packaging tools in Pycharm:
sudo apt install python3-pip
It's python3-pip, not python-pip if you are using the Python3 interpreter.