Re: [Matplotlib-users] Any available backend for non-root users?

[Liang W. <fra...@gm...>]

yes Eric, it was built without tk. But how do I specify the path to the tk
lib and headfile? I found them but have no idea how to pass them to the mpl
build.

Already thankful for your suggestions.
On Aug 17, 2012 11:14 AM, "Moore, Eric (NIH/NIDDK) [F]" <eri...@ni...>
wrote:

>  ** **
>
> ** **
>
> *From:* Liang Wang [mailto:fra...@gm...]
> *Sent:* Thursday, August 16, 2012 6:50 PM
> *To:* Benjamin Root
> *Cc:* mat...@li...
> *Subject:* Re: [Matplotlib-users] Any available backend for non-root
> users?****
>
> ** **
>
> Thank you Ben,****
>
> I did use -X option upon ssh and I am running linux locally. The DISPLAY
> variable is automatically "localhost:17.0", where the number 17 changes for
> each login. But Tk would not work even after I export a new value to
> DISPLAY like ":0.0". I even tried reinstalling matplotlib (from source or
> through easy_install) with both values of DISPLAY but it always warns that
> Tk window failed to open. When I try to use TkAgg, it says****
>
> ** **
>
> ...****
>
>     import matplotlib.backends.tkagg as tkagg****
>
>   File
> "/ccs/home/lag69/.local/lib/python2.7/site-packages/matplotlib-1.1.0-py2.7-linux-x86_64.egg/matplotlib/backends/tkagg.py",
> line 1, in <module>****
>
>     import _tkagg****
>
> ImportError: No module named _tkagg****
>
> ** **
>
> So far I haven't solved this problem and I have to generate png files to
> view them (I can view them by xview or display of ImageMagick so the x11
> forwarding does work) ****
>
> ** **
>
> This is odd, and I almost lost my patient to try. But I still want to
> appreciate your generous help, Ben.****
>
> ** **
>
> regards,****
>
> Liang****
>
> On Thu, Aug 16, 2012 at 4:54 PM, Benjamin Root <ben...@ou...> wrote:***
> *
>
> ** **
>
> On Thu, Aug 16, 2012 at 4:26 PM, Liang Wang <fra...@gm...> wrote:**
> **
>
> Hi everyone. I have trouble to find a usable background on a remote server
> where I do not have root privilege. Unfortunately, there is no backend
> available:****
>
> ** **
>
>                Tkinter: no****
>
>                         * Using default library and include directories for
> ****
>
>                         * Tcl and Tk because a Tk window failed to open.**
> **
>
>                         * You may need to define DISPLAY for Tk to work so
> ****
>
>                         * that setup can determine where your libraries are
> ****
>
>                         * located. Tkinter present, but header files are
> not****
>
>                         * found. You may need to install development****
>
>                         * packages.****
>
>                   Gtk+: no****
>
>                         * Building for Gtk+ requires pygtk; you must be
> able****
>
>                         * to "import gtk" in your build/install
> environment ****
>
>        Mac OS X native: no****
>
>                     Qt: no****
>
>                    Qt4: no****
>
>                 PySide: no****
>
>                  Cairo: no****
>
> ** **
>
> The output of a simple script is****
>
> ==================****
>
> simple_plot.py:****
>
> #****
>
> from pylab import *****
>
> plot([1,2,3])****
>
> show()****
>
> #****
>
> python simple_plot.py --verbose-helpful > output.txt****
>
> ==================****
>
> $HOME=/ccs/home/user1****
>
> CONFIGDIR=/ccs/home/user1/.matplotlib****
>
> matplotlib data path
> /ccs/home/user1/.local/lib/python2.7/site-packages/matplotlib-1.1.0-py2.7-linux-x86_64.egg/matplotlib/mpl-data
> ****
>
> loaded rc file
> /ccs/home/user1/.local/lib/python2.7/site-packages/matplotlib-1.1.0-py2.7-linux-x86_64.egg/matplotlib/mpl-data/matplotlibrc
> ****
>
> matplotlib version 1.1.0****
>
> verbose.level helpful****
>
> interactive is False****
>
> platform is linux2****
>
> Using fontManager instance from /ccs/home/user1/.matplotlib/fontList.cache
> ****
>
> backend agg version v2.2****
>
> ** **
>
> When I tried to install pygtk, it requires glib, which is missing, and I
> just did not digg further. So, is there any workaround that I can get ANY
> backend to work (to show images on screen). ****
>
> ** **
>
> ** **
>
> Any suggestions will be greatly appreciated (I really want to get things
> to work).****
>
> ** **
>
> Regards,****
>
> Liang****
>
> ** **
>
>
> The Agg backend is always available for non-interactive plotting.  In
> other words, you won't be able to do a show() call, but you can save to any
> of the image formats.  The TkAgg backend should also be an option (unless
> that python was built without Tk, which is rare).  Often, if Tk isn't
> working, it is a simple matter of setting your display environment
> correctly.  Most of the time, simply passing the "-X" option to ssh is
> sufficient (assuming you are sshing from a linux box).  Otherwise, I think
> you have to mess around with your DISPLAY environment variable on the
> remote server (I think it is usually ":0.0", but I am no expert on this.
>
> I hope that helps!
> Ben Root****
>
> ** **
>
> ** **
>
> You need to install one of the optional backends.  In your original email
>  the output you included is showing “no” for all of the interactive
> backends.  So somewhere when you’re building mpl, either you don’t have the
> right things installed or the build is unable to locate them.  Tk wasn’t
> found during the build, so no module called _tkagg was built, hence the
> import fails as you report in your second email. Your current problem isn’t
> with DISPLAY, but with the build.  Hopefully someone else can suggest some
> appropriate steps to take to solve you build problems, but I’d first check
> if your python was built with Tk. ****
>
> ** **
>
> Eric****
>
> ** **
>
>
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