So, today i ran into this problem after i wanted to install a python 2.7 GUI designer. (Pygubu)
I needed the Tkinter package, so therefore i tried running
pip install tkinter.
It didnt work as it wasnt detected as a command. After that i thought i'd have to install python2 pip version (I only had python 3 with pip and python2 without pip)
I tried running this command:
sudo apt-get update && sudo apt-get install python-pip
It said that the package python-pip wasnt found, i looked into the forum to see if someone else had the problem.
As i expected, someone else had the problem, and the solution was to add some repositories.
The thing is that when i added the repositories the output said i already had them enabled.
I tried running the command again and still said that it couldnt be found.
I'd appreciate some help.