jupyterlab not honouring PYTHONPATH env var

[Robert Muil]

Dear all,

version 0.32.1 of JupyterLab does not seem to honour the `PYTHONPATH` env var if it is set upon launch of the lab.
Instead, the current directory of the file browser is inserted into `sys.path`...
Is there a way around this that doesn't require hardcoding the directory into a startup script or the notebook itself?
Thank you most kindly.
Rob.

[Roland Weber]

Hello Rob,

have a look at these discussions, maybe there's something that works for you:

https://groups.google.com/d/topic/jupyter/yfg3O4EB7C0/discussion

https://groups.google.com/d/topic/jupyter/UvwJ3NXcYZo/discussion

cheers,

  Roland

[Robert Muil]

Hi Roland,

thanks for response! I did indeed see those, but there suggestions are pretty heavy-handed and involve changing the notebooks and hard-coding paths. Usually the interpreter would honour the environment variable `PYTHONPATH` if it exists... Is there a reason for this?

It's also made more difficult that the path can't be influenced by launching jupyterlab in a different directory: it is the current directory of the file browser that is used.

Rob.

[Paddy Harrison]

Hi, 

I had the same problem, downgrading to JupyterLab 0.32.0 didn't help either. I found that JupyterLab would honour PYTHONPATH (set in my ~/.bash_profile) when initiated from terminal (jupyter lab). However PYTHONPATH would not be honoured when initiated from the Anaconda Navigator. Maybe you are having a similar problem, and it appears to be a problem with Anaconda for me.

NB. the Jupyter Notebooks don't have this problem. And when they are initiated a terminal instance is opened. This is not the case when Lab is initiated from the Anaconda Navigator- no terminal instance is opened.

Cheers,

Paddy

[Robert Muil]

Thanks Paddy, nice to hear I'm not the only one! I'm actually launching this from terminal rather than through anaconda... So I'm surprised it works for you..

--
Robert Muil

+44 7 39806 3940

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