matplotlib-users Mailing List for matplotlib

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
>
>

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

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





Relevant info is:
output of build:
================
basedirlist is: ['/usr/local', '/usr']
============================================================================
BUILDING MATPLOTLIB
            matplotlib: 1.1.1
                python: 2.7.2 (default, Sep 27 2011, 21:40:17)  [GCC 4.3.4
                        [gcc-4_3-branch revision 152973]]
              platform: linux2

REQUIRED DEPENDENCIES
                 numpy: 1.6.1
             freetype2: 9.18.3

OPTIONAL BACKEND DEPENDENCIES
                libpng: 1.2.31
               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

OPTIONAL DATE/TIMEZONE DEPENDENCIES
              datetime: present, version unknown
              dateutil: 1.5
                  pytz: 2011c

OPTIONAL USETEX DEPENDENCIES
                dvipng: no
           ghostscript: 8.62
                 latex: no
               pdftops: 0.12.3
==================
[Edit setup.cfg to suppress the above messages]
============================================================================
pymods ['pylab']
packages ['matplotlib', 'matplotlib.backends',
'matplotlib.backends.qt4_editor', 'matplotlib.projections',
'matplotlib.testing', 'matplotlib.testing.jpl_units
', 'matplotlib.tests', 'mpl_toolkits', 'mpl_toolkits.mplot3d',
'mpl_toolkits.axes_grid', 'mpl_toolkits.axes_grid1',
'mpl_toolkits.axisartist', 'matplotlib.sph
inxext', 'matplotlib.tri', 'matplotlib.delaunay']
running build
running build_py
creating build
.....

warnings of build
============
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
src/_ttconv.cpp: In function 'void initttconv()':
src/_ttconv.cpp:280:15: warning: variable 'm' set but not used
[-Wunused-but-set-variable]
ttconv/pprdrv_tt.cpp: In function 'void Read_name(TTFONT*)':
ttconv/pprdrv_tt.cpp:182:18: warning: variable 'encoding' set but not used
[-Wunused-but-set-variable]
ttconv/pprdrv_tt.cpp:183:9: warning: variable 'language' set but not used
[-Wunused-but-set-variable]
ttconv/pprdrv_tt2.cpp: In member function 'void
GlyphToType3::do_composite(TTStreamWriter&, TTFONT*, unsigned char*)':
ttconv/pprdrv_tt2.cpp:598:12: warning: variable 'xscale' set but not used
[-Wunused-but-set-variable]
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
lib/matplotlib/delaunay/natneighbors.cpp: In member function 'void
NaturalNeighbors::interpolate_grid(double*, double, double, int, double,
double, int, doubl
e*, double, int)':
lib/matplotlib/delaunay/natneighbors.cpp:265:9: warning: variable 'i' set
but not used [-Wunused-but-set-variable]
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
src/path.cpp: In function 'void _add_polygon(Py::List&, const
std::vector<double>&)':
src/path.cpp:1259:58: warning: narrowing conversion of '((&
polygon)->std::vector<_Tp, _Alloc>::size<double, std::allocator<double> >()
/ 2ul)' from 'std::vec
tor<double>::size_type {aka long unsigned int}' to 'npy_intp {aka long
int}' inside { } is ill-formed in C++11 [-Wnarrowing]
src/path.cpp: In function 'void init_path()':
src/path.cpp:1609:26: warning: variable '_path' set but not used
[-Wunused-but-set-variable]
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
lib/matplotlib/tri/_tri.cpp: In member function 'void
Triangulation::calculate_edges()':
lib/matplotlib/tri/_tri.cpp:280:39: warning: narrowing conversion of
'edge_set.std::set<_Key, _Compare, _Alloc>::size<Triangulation::Edge,
std::less<Triangula
tion::Edge>, std::allocator<Triangulation::Edge> >()' from
'std::set<Triangulation::Edge>::size_type {aka long unsigned int}' to
'npy_intp {aka long int}' ins
ide { } is ill-formed in C++11 [-Wnarrowing]
lib/matplotlib/tri/_tri.cpp: In member function 'Py::Object
TriContourGenerator::contour_to_segs(const Contour&)':
lib/matplotlib/tri/_tri.cpp:574:39: warning: narrowing conversion of '(&
line)->ContourLine::<anonymous>.std::vector<_Tp, _Alloc>::size<XY,
std::allocator<XY>
 >()' from 'std::vector<XY>::size_type {aka long unsigned int}' to
'npy_intp {aka long int}' inside { } is ill-formed in C++11 [-Wnarrowing]
lib/matplotlib/tri/_tri.cpp: In function 'void init_tri()':
lib/matplotlib/tri/_tri.cpp:993:23: warning: variable 'triModule' set but
not used [-Wunused-but-set-variable]
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
src/backend_agg.cpp: In member function 'Py::Object
BufferRegion::to_string_argb(const Py::Tuple&)':
src/backend_agg.cpp:151:20: warning: variable 'end' set but not used
[-Wunused-but-set-variable]
src/backend_agg.cpp: In member function 'Py::Object
RendererAgg::draw_quad_mesh(const Py::Tuple&)':
src/backend_agg.cpp:1758:23: warning: variable 'free_edgecolors' set but
not used [-Wunused-but-set-variable]
src/backend_agg.cpp: In member function 'Py::Object
RendererAgg::write_rgba(const Py::Tuple&)':
src/backend_agg.cpp:1994:10: warning: variable 'close_file' set but not
used [-Wunused-but-set-variable]
src/backend_agg.cpp: In function 'void init_backend_agg()':
src/backend_agg.cpp:2416:33: warning: variable '_backend_agg' set but not
used [-Wunused-but-set-variable]
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
src/_png.cpp: In function 'void init_png()':
src/_png.cpp:497:25: warning: variable '_png' set but not used
[-Wunused-but-set-variable]
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching
for -lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libpthread.a when searching for
-lpthread
/usr/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc

==================

>> (Corrects the top posting of the earlier replies, Sorry)
> 
>> On Aug 15, 2012, at 5:17 AM, Benjamin Root wrote:
>> 
>>> 
>>> 
>>> On Wednesday, August 15, 2012, David Grudoski wrote:
>>> Hi All,
>>> I've encountered this problem with the both NavigationToolbar2Wx and the NavigationToolbar2WxAgg.
>>> When I click the Zoom or Pan button the button disappears. The functionality is maintained so if a click the location that the button used to be displayed at the toggle action still works its just that the button is no longer displayed.
>>> Can any one help me fix this?
>>> Thanks
>>> David
>>> 
>>> Which version of matplotlib are you using?
>>> 
>>> Ben Root
>> 
> 
> 
> 
>> From: David Grudoski <da...@we...>
>> Date: August 15, 2012 6:30:20 AM PDT
>> To: Benjamin Root <ben...@ou...>
>> Cc: "mat...@li..." <mat...@li...>
>> Subject: Re: [Matplotlib-users] NavigationToolbar2WxAgg Buttons Disappear
>> 
>> I'm running:
>> Matplotlib 1.1.0
>> wxPython 2.9.2.4 osx-carbon (classic)
>> Python 2.6
>> on Mac OSX 10.6.8
> 
> I tried running  the  wxcursor_demo.py from the Matplotlib examples it also behave the same way. 
> When the zoom or pan icon is selected it disappears from the toolbar but the space it occupies behaves as if it is still there just not visible.