Why doesn't PyCharm see other Python interpreters?

Question

PyCharm

I can not specify the path to the Python3.8 interpreter in PyCharm.
It costs LMDE 3, Python 3.5.3 is preinstalled in it, it is located: /usr/bin/python3
I installed Python3.8, it is located: I launch PyCharm, open Settings, look for the path to 3.8, the IDE does not see the /local directory inside the /usr directory In addition, the IDE does not see also neither /usr/bin/python, nor /usr/bin/python3, nor /usr/bin/python3.5, but it uses Python3.7, which is not recognized by the system (but here, as I understand it, the matter is in PATH) and which is NOT in /usr/bin/ AT ALL What's going on? How to specify the required interpreter? /usr/local/bin/python3.8

Answer 1

I had the same thing if you install through the application manager. Then I installed it through the terminal at the office. the manual and it worked right away.