[yt-users] PNG error on YT install

[Britton Smith]

Hi Carolyn,

I think Nathan had a similar issue just a couple days ago.  His solution
was to create a png.cfg file in his yt source directory.  That file should
just have a single line with the correct path to the libpng install,
similar to what's in the hdf5.cfg file.  Someone strike me with lightning
if I messed that up.

Britton

On Fri, Jun 29, 2012 at 11:47 AM, Carolyn Peruta <perutaca at msu.edu> wrote:

>
> I looked back in the email archive and found this exact same problem from
> John ZuHone.
> http://lists.spacepope.org/pipermail/yt-users-spacepope.org/2011-June/001652.html
>
> I wiped all png related stuff from the build and set INST_PNGLIB to 0 but
> I am still getting this error.  Any ideas?
>
> Notes:  OSX 10.7.4   using Apple's gcc 4.2.1
>
>
> ERROR:
> Traceback (most recent call last):
>   File "/Users/cperuta/yt-i386/bin/yt", line 9, in <module>
>     load_entry_point('yt==2.3', 'console_scripts', 'yt')()
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/distribute-0.6.21-py2.7.egg/pkg_resources.py",
> line 337, in load_entry_point
>     return get_distribution(dist).load_entry_point(group, name)
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/distribute-0.6.21-py2.7.egg/pkg_resources.py",
> line 2281, in load_entry_point
>     return ep.load()
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/distribute-0.6.21-py2.7.egg/pkg_resources.py",
> line 1991, in load
>     entry = __import__(self.module_name, globals(),globals(), ['__name__'])
>   File "/Users/cperuta/yt-i386/src/yt-hg/yt/utilities/command_line.py",
> line 26, in <module>
>     from yt.mods import *
>   File "/Users/cperuta/yt-i386/src/yt-hg/yt/mods.py", line 107, in <module>
>     from yt.visualization.api import \
>   File "/Users/cperuta/yt-i386/src/yt-hg/yt/visualization/api.py", line
> 34, in <module>
>     from plot_collection import \
>   File
> "/Users/cperuta/yt-i386/src/yt-hg/yt/visualization/plot_collection.py",
> line 26, in <module>
>     from matplotlib import figure
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/figure.py",
> line 18, in <module>
>     from axes import Axes, SubplotBase, subplot_class_factory
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/axes.py",
> line 14, in <module>
>     import matplotlib.axis as maxis
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/axis.py",
> line 14, in <module>
>     import matplotlib.text as mtext
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/text.py",
> line 31, in <module>
>     from matplotlib.backend_bases import RendererBase
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/backend_bases.py",
> line 48, in <module>
>     import matplotlib.textpath as textpath
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/textpath.py",
> line 9, in <module>
>     from matplotlib.mathtext import MathTextParser
>   File
> "/Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/mathtext.py",
> line 52, in <module>
>     import matplotlib._png as _png
> ImportError:
> dlopen(/Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/_png.so,
> 2): Symbol not found: _png_set_longjmp_fn
>   Referenced from:
> /Users/cperuta/yt-i386/lib/python2.7/site-packages/matplotlib/_png.so
>   Expected in: dynamic lookup
>
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>
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