I highly recommend macports[1] as the method to install matplotlib, as I have
never had issues.
-Sterling
[1] http://www.macports.org/install.php
On Oct 2, 2013, at 7:39AM, pymilo wrote:
> Hello everyone,
>
> I want to work whit matplotlib and I installed it using pip command.
> Apparently the installation was successful and when I open ipython and
> import matplotlib everything works well. Nevertheless when I try to import
> pyplot using: import matplotlib.pyplot I obtain this:
>
> ---
> ImportError Traceback (most recent call last)
> in ()
> > 1 import matplotlib.pyplot
>
> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/pyplot.py
> in ()
> 22
> 23 import matplotlib
> ---> 24 import matplotlib.colorbar
> 25 from matplotlib import _pylab_helpers, interactive
> 26 from matplotlib.cbook import dedent, silent_list, is_string_like,
> is_numlike
> .
> .
> .
> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/mathtext.py
> in ()
> 60
> 61 import matplotlib.colors as mcolors
> ---> 62 import matplotlib._png as _png
> 63
> 64
>
> ImportError:
> dlopen(/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/_png.so,
> 2): Symbol not found: _png_set_longjmp_fn
> Referenced from:
> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/_png.so
> Expected in: flat namespace
> in
> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/_png.so
> ---
>
> I have installed the libpng library as was suggested in other post but
> nothing worked. I am working with a Mac OS X 10.7.5 and I have installed the
> XQuartz 2.7.4. I really do not have a clue about what is happening with
> that, I would appreciate so much if you can help me figure this problem out.
>
>
> All the best!
> Milo.
>
>
>
>
>
>
> --
> View this message in context:
> http://matplotlib.1069221.n5.nabble.com/import-matplotlib-pyplot-does-not-work-tp42155.html
> Sent from the matplotlib - users mailing list archive at Nabble.com.
>
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