export VENV="${HOME}/dev/venv"
python3 -m venv ${VENV}/py3
source ${VENV}/py3/bin/activate
deactivate
virtualenv -p /usr/bin/python2 ${VENV}/py2
source ${VENV}/py2/bin/activate
deactivate
export VENV="${HOME}/dev/venv"
python3 -m venv ${VENV}/py3
source ${VENV}/py3/bin/activate
deactivate
virtualenv -p /usr/bin/python2 ${VENV}/py2
source ${VENV}/py2/bin/activate
deactivate