To upgrade pypilot from github on openplotter (and all other systems) from a terminal:
cd git clone https://github.com/pypilot/pypilot git clone https://github.com/pypilot/pypilot_data cp -rv pypilot_data/* pypilot cd pypilot python setup.py build sudo python setup.py install
If upgrading pypilot over ssh, then change the git clone lines to:
git clone git://github.com/pypilot/pypilot git clone git://github.com/pypilot/pypilot_data