[yt-users] pyplot and libpng

[Matthew Turk]

Hi Desika,

On Wed, Sep 18, 2013 at 5:00 PM, Desika Narayanan
<dnarayanan at as.arizona.edu> wrote:
> Hi Everyone,
>
> I'm having a little trouble getting pyplot to import using the yt
> installation of python.  Specifically, I *just* installed yt on the cluster
> at Haverford and get the error below.
>
> I've looked around the yt directoreis for the .so file in question, but
> can't seem to find it.  Has anyone else encountered this?  Or is this likely
> a system-specific problem?

Have you run the "activate" command?  This would look something like:

activate /home/desika/yt-x86_64/bin/actviate

That should prepend the LD_LIBRARY_PATH that libpng can be found in.

-Matt

>
> thanks,
> Desika
>
>
>
> [desika at fock ~]$ ipython
> In [1]: import matplotlib.pyplot as plt
>
> ---------------------------------------------------------------------------
> ImportError                               Traceback (most recent call last)
> <ipython-input-1-eff513f636fd> in <module>()
> ----> 1 import matplotlib.pyplot as plt
>
> /home/desika/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyplot.py in
> <module>()
>      24 from matplotlib.cbook import dedent, silent_list, is_string_like,
> is_numlike
>      25 from matplotlib import docstring
> ---> 26 from matplotlib.figure import Figure, figaspect
>      27 from matplotlib.backend_bases import FigureCanvasBase
>      28 from matplotlib.image import imread as _imread
>
> /home/desika/yt-x86_64/lib/python2.7/site-packages/matplotlib/figure.py in
> <module>()
>      30
>      31 from matplotlib import _image
> ---> 32 from matplotlib.image import FigureImage
>      33
>      34 import matplotlib.colorbar as cbar
>
> /home/desika/yt-x86_64/lib/python2.7/site-packages/matplotlib/image.py in
> <module>()
>      20 # For clarity, names from _image are given explicitly in this
> module:
>      21 import matplotlib._image as _image
> ---> 22 import matplotlib._png as _png
>      23
>      24 # For user convenience, the names from _image are also imported into
>
> ImportError: libpng16.so.16: cannot open shared object file: No such file or
> directory
>
>
>
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