[Neuroimaging] Problem with PySurfer module in Python3

[Kadwani, Manorama]

Yes, I meant that "import surfer" gave the ModuleNotFoundError.

Thanks for the tip. I upgraded PySurfer. But the Ipython terminal still cannot find the surfer module.

No, I didn't mean to use VTK 9 since you said that Mayavi can't deal with VTK9. What I meant was do I need to link that VTK8.2 (which is already present in the system) to Qt build or just installing it is enough? Similarly, does PySurfer need to be linked to these other packages or installing it should be enough to start using it?

Thanks,
Manorama
________________________________
From: Neuroimaging <neuroimaging-bounces+mkadwani=mgh.harvard.edu at python.org> on behalf of Eric Larson <larson.eric.d at gmail.com>
Sent: Friday, June 12, 2020 12:13 PM
To: Neuroimaging analysis in Python <neuroimaging at python.org>
Subject: Re: [Neuroimaging] Problem with PySurfer module in Python3


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When I again tried installing PySurfer, it said that 'Requirement already satisfied: PySurfer in /usr/local/lib/python3.6/dist-packages'. Python3 still can't find PySurfer module.

You mean you do `import surfer` and get a `ModuleNotFoundError: No module named 'surfer'`?

Also, you can try `python3 -m pip install --upgrade`, the message above indicates that it didn't bother to try installing the latest `PySurfer` because you already had one installed.

Also, I had installed VTK-9.0.0 previously using the configuration steps in https://vtk.org/Wiki/VTK/Building/Linux. There they mentioned configuring VTK with the path to the Qt build and path to VTK. Where is the location of VTK in that archive if I need to modify the cmakeList?

VTK 8.2 (and even 8.1.2) should work okay for most systems. If you want to use VTK 9, please don't try to build it on your own (this will be difficult), first try installing the wheels. For some reason there are no Linux wheels on PyPi, but they are on the VTK website, so you can do:

pip install --upgrade -f "https://vtk.org/download" "vtk>=9"

Eric



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