User Tools

Site Tools


The aim of virtualenv is to provide your own instance of Python as maintaining different versions of packages is really tricky. This tutorial shows how to have a tailored Python environement for your program :

You can create a directory for your program “mon_programme” :

nicolas.greneche@magi1:~$ mkdir mon_programme
nicolas.greneche@magi1:~$ cd mon_programme

Then, you can create a virtualenv based mon Magi's Python in a subdirectory called “venv” :

nicolas.greneche@magi1:~$ virtualenv -p /usr/bin/python3.9 venv

You may activate the brand new environement :

nicolas.greneche@magi1:~$ source venv/bin/activate

You can check that your default Python is from the virtualenv :

(venv) nicolas.greneche@magi1:~/mon_programme$ which python

Finally, you can install your own packages in the virtualenv :

(venv) nicolas.greneche@magi1:~/mon_programme$ pip install numpy
venv.txt · Last modified: 2022/06/15 16:37 by nico