[pyngl-talk] missing shared library for PyNIO

Kevin Hallock hallock at ucar.edu
Wed Feb 8 16:31:43 MST 2017


Hi Xingang,

I would suggest installing everything at once using the command:
conda install -n metuse -c conda-forge python=2.7 basemap netcdf4 pynio pyngl

However, we are in the process of fixing an issue with the PyNGL package on conda-forge at the moment, so “import Ngl” might not work for right now.

Kevin

> On Feb 7, 2017, at 9:14 PM, Fan, Xingang <xingang.fan at wku.edu> wrote:
> 
> The basemap and/or matplotlib problem seemed stemed from installation of pynio pyngl from conda-forge.
> 
> Both basemap and matplotlib works fine right after I activated the new env. But, the installation of pynio pyngl need to update matplotlib as shown below:
> ==========
> (metuse) M-C02T336YFVH4:~ xng02546$ conda install -c conda-forge -c defaults pynio pyngl
> Fetching package metadata ...........
> Solving package specifications: .
> 
> Package plan for installation in environment /Users/xng02546/anaconda2/envs/metuse:
> 
> The following NEW packages will be INSTALLED:
> 
>    pyngl:      1.5.0_beta20161122-np111py27_1  conda-forge
>    pynio:      1.5.0_beta20160623-np111py27_14 conda-forge
> 
> The following packages will be UPDATED:
> 
>    freetype:   2.5.5-2                                     --> 2.6.3-1           conda-forge
>    matplotlib: 2.0.0-np111py27_0                           --> 2.0.0-np111py27_0 conda-forge
> 
> The following packages will be SUPERCEDED by a higher-priority channel:
> 
>    fontconfig: 2.12.1-3                                    --> 2.11.1-6          conda-forge
> 
> Proceed ([y]/n)? 
> ==============
> 
> If choose yes, then basemap will have problem to import, as well as Nio.
> 
> Thanks,
> Xingang
> 
> On 2/7/17, 9:10 PM, "Fan, Xingang" <xingang.fan at wku.edu> wrote:
> 
>    Hi, Kevin:
> 
>    We had talked before about installing pynio and pyngl on my old Mac OSX 10.8. At that time, I was able to use channel ncar and khallock for them.
> 
>    Now, I just got a new Mac system today, Mac OSX 10.12. I followed procedures that I used last time, it seems having problems again (this time I use conda-forge).
> 
>    Here are the main steps:
> 
>    After installed anaconda2:
>       conda create –n metuse python=2.7 basemap netcdf4
>       source activate metuse
>       conda install –c conda-forge pynio pyngl
> 
>    Here are the problems when I import basemap and Nio in python:
> 
>>>> import numpy
>>>> from mpl_toolkits.basemap import Basemap
>    Traceback (most recent call last):
>      File "<stdin>", line 1, in <module>
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/mpl_toolkits/basemap/__init__.py", line 31, in <module>
>        from mpl_toolkits.axes_grid1 import make_axes_locatable
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/mpl_toolkits/axes_grid1/__init__.py", line 6, in <module>
>        from . import axes_size as Size
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/mpl_toolkits/axes_grid1/axes_size.py", line 19, in <module>
>        from matplotlib.axes import Axes
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/axes/__init__.py", line 4, in <module>
>        from ._subplots import *
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/axes/_subplots.py", line 10, in <module>
>        from matplotlib.axes._axes import Axes
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/axes/_axes.py", line 23, in <module>
>        import matplotlib.contour as mcontour
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/contour.py", line 23, in <module>
>        import matplotlib.text as text
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/text.py", line 33, in <module>
>        from matplotlib.backend_bases import RendererBase
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/backend_bases.py", line 63, in <module>
>        import matplotlib.textpath as textpath
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/textpath.py", line 20, in <module>
>        from matplotlib.mathtext import MathTextParser
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/mathtext.py", line 62, in <module>
>        import matplotlib._png as _png
>    ImportError: dlopen(/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/_png.so, 2): Library not loaded: @rpath/libpng16.16.dylib
>      Referenced from: /Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/matplotlib/_png.so
>      Reason: Incompatible library version: _png.so requires version 45.0.0 or later, but libpng16.16.dylib provides version 44.0.0
>>>> 
>>>> from mpl_toolkits.basemap import Basemap
>    Traceback (most recent call last):
>      File "<stdin>", line 1, in <module>
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/mpl_toolkits/basemap/__init__.py", line 30, in <module>
>        from mpl_toolkits.basemap import pyproj
>    ImportError: cannot import name pyproj
>>>> 
>>>> import Nio
>    Traceback (most recent call last):
>      File "<stdin>", line 1, in <module>
>      File "/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/PyNIO/Nio.py", line 83, in <module>
>        from nio import *
>    ImportError: dlopen(/Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/PyNIO/nio.so, 2): Library not loaded: @rpath/libpng16.16.dylib
>      Referenced from: /Users/xng02546/anaconda2/envs/metuse/lib/python2.7/site-packages/PyNIO/nio.so
>      Reason: Incompatible library version: nio.so requires version 45.0.0 or later, but libpng16.16.dylib provides version 44.0.0
>>>> 
> 
>    Please see if you can identify where I went wrong.
>    Thanks,
> 
>    Xingang
> 
>    -- 
>    Xingang Fan, Ph. D.,        |      Department of Geography and Geology
>    Associate Professor         |      Western Kentucky University
>    of Meteorology                |      1906 College Heights Blvd., #31066
>    270-745-5980                   |      Bowling Green, KY 42101-1066
>    xingang.fan at wku.edu
>    http://people.wku.edu/xingang.fan
> 
> 
> 
> 

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