[Matplotlib-users] backend for matplotlib on NAS Lou

[Thomas Caswell]

This should go either to anaconda support or to your local sysadmins.

It may also be worth trying to us `tkagg` which tends to bundled with
python and may have a higher chance of working.

Tom

On Mon, Feb 5, 2018 at 11:19 AM Slavin, Jonathan <jslavin at cfa.harvard.edu>
wrote:

> The platform is Suse Linux Enterprise Server 12.
> Also, I checked and there are no modules loaded:
> > module list
> No Modulefiles Currently Loaded.
>
> I also checked that I was launching the anaconda version of python/ipython.
>
> ​To be more explicit about the error, if I use in my matplotlibrc:
> ​backend      : Qt5Agg
> backend.qt4 : PyQt4
>
> Then when I start up ipython with the --pylab argument, I get:
> [TerminalIPythonApp] WARNING | Eventloop or matplotlib integration failed.
> Is matplotlib installed?
> ---------------------------------------------------------------------------
> ImportError                               Traceback (most recent call last)
> /u/jdslavin/anaconda2/lib/python2.7/site-packages/IPython/core/shellapp.pyc
> in <lambda>(key)
>     196         shell = self.shell
>     197         if self.pylab:
> --> 198             enable = lambda key: shell.enable_pylab(key,
> import_all=self.pylab_import_all)
>     199             key = self.pylab
>     200         elif self.matplotlib:
> ...
> (snipped)
>
> /u/jdslavin/anaconda2/lib/python2.7/site-packages/matplotlib/backends/qt_compat.py
> in <module>()
>     135     if QT_API == QT_API_PYQT5:
>     136         try:
> --> 137             from PyQt5 import QtCore, QtGui, QtWidgets
>     138             _getSaveFileName =
> QtWidgets.QFileDialog.getSaveFileName
>     139         except ImportError:
>
> ImportError: /lib64/libpthread.so.0: version `GLIBC_2.12' not found
> (required by
> /u/jdslavin/anaconda2/lib/python2.7/site-packages/PyQt5/../../.././libglib-2.0.so.0)
>
> So I'm guessing that this has to do with the version of glibc installed
> rather than the missing gui toolkits as I had previously thought.  It could
> be that loading some module might fix the problem, though I'm not sure if
> that's true or which one I'd need to load.
> Any ideas?
>
> Jon
>
> On Sun, Feb 4, 2018 at 10:28 AM, <matplotlib-users-request at python.org>
> wrote:
>>
>> Date: Sun, 4 Feb 2018 16:12:20 +0100
>
>
>> From: Jerzy Karczmarczuk <jerzy.karczmarczuk at unicaen.fr>
>> To: matplotlib-users at python.org
>> Subject: Re: [Matplotlib-users] backend for matplotlib on NAS Lou
>>
> Message-ID: <ac90dd6e-f292-84fa-7e54-e8779a531e6c at unicaen.fr>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>
>
>>
>>
>> Please, tell what is your platform, under which system. Which Python
>> version.
>> You seem not believing me that you may have conflicts between various QT
>>
> instances. Perhaps...? Verify *all* the occurrences of your libraries
>
>
>> susceptible of being used by the mpl backend variants. Use 'which',
>> 'where', 'locate', etc., all that goes on your system.
>> First of all, you must ensure and be certain that you launch what you
>> think you do, and not some "parasites".
>> BTW. I didn't use "show()" for a long time, plt.plot(...) plots, and
>> that's it.
>>
>> All the best
>>
>> Jerzy
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Sun, 04 Feb 2018 15:22:29 +0000
>> From: Nathan Goldbaum <nathan12343 at gmail.com>
>> To: Jerzy Karczmarczuk <jerzy.karczmarczuk at unicaen.fr>
>> Cc: matplotlib-users at python.org
>
>
>> Subject: Re: [Matplotlib-users] backend for matplotlib on NAS Lou
>> Message-ID:
>>
>         <CAJXewOkyWqatumYFLLBsuSpOC2OzMx_zHmQ6O0=
>> 91T3ewYo+SA at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>
>
>>
>> I would also unload all modules you have loaded, if Lou has a module
>> system
>>
> installed. In the past I?ve found that the module system used on HPC
>
>
>> systems can defeat the rpath trickery that conda uses to associate an
>> extension module with a python package.
>>
> --
> ________________________________________________________
> Jonathan D. Slavin                 Harvard-Smithsonian CfA
> jslavin at cfa.harvard.edu       60 Garden Street, MS 83
> phone: (617) 496-7981       Cambridge, MA 02138-1516
> cell: (781) 363-0035             USA
> ________________________________________________________
>
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