[matplotlib-devel] warnings, bugs with GTK backends

[Michael K. <kau...@or...>]

Hello all,

I just upgraded my matplotlib and gtk distributions because I thought 
I'd try the GTK3Agg backend (I had been using the GTKAgg backend).

I'm using macports for the supporting libraries with git repositories 
for ipython and matplotlib (today's master [0b8481977016e8f], but I seem 
to have the same issues with tag v1.3.x)

Before installing matplotlib, I did a make clean and then removed 
everything from the build/ directory, and matplotlib* from
python2.7/site-packages/

The following ports are currently installed:
   gtk2 @2.24.17_1+x11 (active)
   gtk3 @3.10.0_0+x11 (active)
   py27-gobject3 @3.8.3_0 (active)
   py27-gobject @2.28.6_0 (active)

If I use the GTKAgg backend I get these warnings (which I did not get 
before).

===
Using matplotlib backend: GTKAgg

In [1]: x = arange(0,10,0.1)

In [2]: plot(x,sin(x))
/Users/mcj/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-macosx-10.8-x86_64.egg/matplotlib/backends/backend_gtk.py:651: 
Warning: Attempt to add property GtkSettings::gtk-label-select-on-focus 
after class was initialised
   gtk.Toolbar.__init__(self)
/Users/mcj/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-macosx-10.8-x86_64.egg/matplotlib/backends/backend_gtk.py:651: 
Warning: Attempt to add property GtkSettings::gtk-button-images after 
class was initialised
   gtk.Toolbar.__init__(self)
Out[2]: [<matplotlib.lines.Line2D at 0x11025e250>]
===

Otherwise everything else seems ok.

If I use the GTK3Agg backend, I get no plot window when I do a show(), 
and when I attempt to exit ipython, I get these errors:

===
object?   -> Details about 'object', use 'object??' for extra details.
Using matplotlib backend: GTK3Agg

In [1]: x = arange(0,10,0.1)

In [2]: plot(x,sin(x))
Out[2]: [<matplotlib.lines.Line2D at 0x10957d450>]

In [3]: show()

In [4]:
Do you really want to exit ([y]/n)?
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
   File 
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/atexit.py", 
line 24, in _run_exitfuncs
     func(*targs, **kargs)
   File 
"/Users/mcj/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-macosx-10.8-x86_64.egg/matplotlib/_pylab_helpers.py", 
line 89, in destroy_all
     manager.destroy()
   File 
"/Users/mcj/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-macosx-10.8-x86_64.egg/matplotlib/backends/backend_gtk3.py", 
line 433, in destroy
     self.canvas.destroy()
AttributeError: FigureManagerGTK3Agg instance has no attribute 'canvas'
Error in sys.exitfunc:
Traceback (most recent call last):
   File 
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/atexit.py", 
line 24, in _run_exitfuncs
     func(*targs, **kargs)
   File 
"/Users/mcj/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-macosx-10.8-x86_64.egg/matplotlib/_pylab_helpers.py", 
line 89, in destroy_all
     manager.destroy()
   File 
"/Users/mcj/lib/python2.7/site-packages/matplotlib-1.4.x-py2.7-macosx-10.8-x86_64.egg/matplotlib/backends/backend_gtk3.py", 
line 433, in destroy
     self.canvas.destroy()
AttributeError: FigureManagerGTK3Agg instance has no attribute 'canvas'
===

Anyone have a clue?

M