Setting up python on linux nodes

• Python - linux : Look for 'Using a Python Virtual Environment, with Python 3.6.8'
• In brief - what works on lnx6186
  • cd $d9/python
  • python3 -m venv vpython
  • source vpyton/bin/activate
  • pip3 install astropy
  • pip3 install matplotlib
  • pip3 install ....
  • deactivate