[Matplotlib-users] Problem when embedding in GTK-Application

[Thorsten K. <tho...@go...>]

Good morning,

I came across a problem when building matplotlib from source. On my desktop
PC, running Ubuntu 8.10, I ran

python setup.py build

in an up-to-date svn checkout. The output (only dependencies, I don't want
to send all output, will do this if required)

============================================================================
BUILDING MATPLOTLIB
            matplotlib: 0.98.6svn
                python: 2.5.2 (r252:60911, Oct  5 2008, 19:24:49)  [GCC
                        4.3.2]
              platform: linux2

REQUIRED DEPENDENCIES
                 numpy: 1.4.0.dev6870
             freetype2: 9.18.3

OPTIONAL BACKEND DEPENDENCIES
                libpng: 1.2.27
               Tkinter: Tkinter: 50704, Tk: 8.4, Tcl: 8.4
              wxPython: 2.8.8.0
                        * WxAgg extension not required for wxPython >= 2.8
                  Gtk+: gtk+: 2.14.4, glib: 2.18.2, pygtk: 2.13.0,
                        pygobject: 2.15.3
       Mac OS X native: no
                    Qt: no
                   Qt4: Qt: 4.4.3, PyQt4: 4.4.4
                 Cairo: 1.4.12

OPTIONAL DATE/TIMEZONE DEPENDENCIES
              datetime: present, version unknown
              dateutil: 1.4
                  pytz: 2008b

OPTIONAL USETEX DEPENDENCIES
                dvipng: 1.11
           ghostscript: 8.63
                 latex: 3.141592
               pdftops: 3.00

[Edit setup.cfg to suppress the above messages]
============================================================================

I then copied the content of the build/lib...-directory to a folder that is
in my $PYTHONPATH. When I then try to run any program embedding matplotlib
in GTK, e.g. one of the examples that come with mpl, I receive the following
error:

--------------
Traceback (most recent call last):
  File "/home/thorsten/python/matplotlib/backends/backend_gtk.py", line 352,
in expose_event
    self._render_figure(self._pixmap, w, h)
  File "/home/thorsten/python/matplotlib/backends/backend_gtk.py", line 340,
in _render_figure
    self.figure.draw (self._renderer)
  File "/home/thorsten/python/matplotlib/figure.py", line 739, in draw
    if self.frameon: self.patch.draw(renderer)
  File "/home/thorsten/python/matplotlib/patches.py", line 302, in draw
    renderer.draw_path(gc, tpath, affine, rgbFace)
  File "/home/thorsten/python/matplotlib/backends/backend_gdk.py", line 95,
in draw_path
    self.gdkDrawable.draw_polygon(gc.gdkGC, True, polygon)
TypeError: sequence members must be 2-tuples
----------------

I did the same first on my laptop, running still ubuntu 8.04, the ouput was

============================================================================
BUILDING MATPLOTLIB
            matplotlib: 0.98.6svn
                python: 2.5.2 (r252:60911, Jul 31 2008, 17:28:52)  [GCC
                        4.2.3 (Ubuntu 4.2.3-2ubuntu7)]
              platform: linux2

REQUIRED DEPENDENCIES
                 numpy: 1.4.0.dev6870
             freetype2: 9.16.3

OPTIONAL BACKEND DEPENDENCIES
                libpng: 1.2.15beta5
               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.
              wxPython: 2.8.7.1
                        * WxAgg extension not required for wxPython >= 2.8
                  Gtk+: gtk+: 2.12.9, glib: 2.16.6, pygtk: 2.12.1,
                        pygobject: 2.14.2
       Mac OS X native: no
                    Qt: no
                   Qt4: no
                 Cairo: 1.4.0

OPTIONAL DATE/TIMEZONE DEPENDENCIES
              datetime: present, version unknown
              dateutil: 1.3
                  pytz: 2007k

OPTIONAL USETEX DEPENDENCIES
                dvipng: 1.9
           ghostscript: 8.61
                 latex: 3.141592
               pdftops: 3.00

[Edit setup.cfg to suppress the above messages]
============================================================================

and everything works fine with embedding.

Can anybody give me a hint what might be wrong?

Greetings,
Thorsten