sudo python3 -m venv --upgrade /usr/lib/ckan/default
  /usr/lib/ckan/default/bin/python3 -m ensurepip --upgrade
  /usr/lib/ckan/default/bin/pip install -r /usr/lib/ckan/default/src/ckan/dev-requirements.txt
  sudo /usr/lib/ckan/default/bin/pip install -r /usr/lib/ckan/default/src/ckan/dev-requirements.txt