title: Specific jupyter notebook config file for a virtual environment
body: <p>I created a virtual environment in python3 (with venv) to use several packages, including jupyter notebook.</p>
  <p>Running the bash command <code>jupyter --config-dir</code> I noticed that the config file used by jupyter notebook in the virtual environment is the main one of my machine (<code>~/.jupyter/jupyter_notebook_config.py</code>).</p>
  <p>How can I create a new config file and tell the virtual environment to use it. The goal is not to modify the main one because I need it for other projects.</p>