[pyngl-talk] Fix for PyNGL conda installation errors

[Victor Gensini]

Kevin,

I agree, thanks for this. Looking forward to the Python 3.x version!

Best,

-----------------------------
Vittorio (Victor) A. Gensini, Ph.D.
Assistant Professor
Geographic and Atmospheric Sciences
Northern Illinois University
Davis Hall, Room 118
DeKalb, IL 60115

On Dec 21, 2017, at 6:06 PM, Tsukernik, Maria via pyngl-talk <pyngl-talk at ucar.edu<mailto:pyngl-talk at ucar.edu>> wrote:

Dear Kevin!

Thank you so much for the fix, I appreciate you working hard to patch things.
This does seem to fix my problem for now.

Thank you!

Masha
--------------------------------------
Dr. Maria (Masha) Tsukernik
Research scientist/Adjunct Lecturer
Department of Earth, Environmental and Planetary Sciences
Brown University
Providence, RI 02912

On Wed, Dec 20, 2017 at 6:37 PM, Kevin Hallock via pyngl-talk <pyngl-talk at ucar.edu<mailto:pyngl-talk at ucar.edu>> wrote:
Hi everyone,

We’ve recently received numerous reports that our conda installation instructions<http://www.pyngl.ucar.edu/Download/> are resulting in an “UnsatisfiableError” when trying to install PyNGL.

The good news is that we've found a workaround for this issue:
conda create -n pyngl_fix -c conda-forge -c conda-forge/label/broken pyngl poppler=0.52 xerces-c=3.1 gsl

The (potentially) bad news is that this workaround requires a “broken” version of the GDAL/libgdal dependency to be installed alongside PyNGL, which may break compatibility with other conda packages. If no other conda packages are installed in the conda environment containing PyNGL (“pyngl_fix” in the example command above), then this should not be an issue.

If anyone tries this workaround and continues to experience problems installing or running PyNGL via conda, please let us know.

Thanks!
Kevin

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