Re: [Matplotlib-users] import matplotlib.pyplot does not work

[Sterling S. <sm...@fu...>]

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)
> <ipython-input-11-6f467123fe04> in <module>()
> ----> 1 import matplotlib.pyplot
> 
> /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/pyplot.py
> in <module>()
>     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 <module>()
>     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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