foo@bar:~$ python3 -m venv vzg.jconv
foo@bar:~$ cd vzg.jconv
foo@bar:~$ source bin/activate
(vzg.jconv) foo@bar:~$ pip install --upgrade pip
(vzg.jconv) foo@bar:~$ pip install vzg.jconv
(vzg.jconv) foo@bar:~$ simple-conv -h