Creation of virtual environments
https://docs.python.org/3/library/venv.html
# Ubuntu
apt install python3.5-venv
pyvenv-3.5 bundle3
# or
python3 -m venv bundle3
source bundle3/bin/activate
python3 -m venv bundle3
source bundle3/bin/activate
Creation of virtual environments
https://docs.python.org/3/library/venv.html
# Ubuntu
apt install python3.5-venv
pyvenv-3.5 bundle3
# or
python3 -m venv bundle3
source bundle3/bin/activate
python3 -m venv bundle3
source bundle3/bin/activate
http://stackoverflow.com/questions/39539110/pyvenv-not-working-because-ensurepip-is-not-available