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This is where you need to select your customized Jupyter environment by sourcing (or activating) the desired Python virtualenv or Conda path. The default value is source /n/app/jupyter_python-3.7.4/6.2.0/bin/activate which will activate a basic Jupyter notebook installed against Python 3.7.4. For more information on how to build your own jupyter environment please check our wiki page at Jupyter on O2#InstallingJupyter
If you are using the Conda default (base)environment you need to explicitly activate that environment using this section, the environment is not automatically activated otherwise.
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