[pyngl-talk] missing shared library for PyNIO

Thu Feb 9 09:29:27 MST 2017

Hi, Kevin:

Thanks a lot! That worked for all installed, except as you mentioned, PyNGL is not working.
I used the following:
conda create -n metuse -c conda-forge python=2.7 spyder jupyter basemap netcdf4 pynio pyngl pygrib

Xingang

From: Kevin Hallock <hallock at ucar.edu>
Date: Wednesday, February 8, 2017 at 5:31 PM
To: Xingang Fan <xingang.fan at wku.edu>
Cc: "pyngl-talk at ucar.edu" <pyngl-talk at ucar.edu>
Subject: Re: [pyngl-talk] missing shared library for PyNIO

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<mailto: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The following packages will be SUPERCEDED by a higher-priority channel: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<mailto: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<mailto:xingang.fan at wku.edu>
   http://people.wku.edu/xingang.fan

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