I just installed matplotlib on Snow Leopard 10.6 with the Qt4 backend (via
macports). However, when I try one of the Qt4 examles:
python
/opt/local/share/py26-matplotlib/examples/user_interfaces/embedding_in_qt4.py
I get the following error message:
Traceback (most recent call last):
File
/opt/local/share/py26-matplotlib/examples/user_interfaces/embedding_in_qt4.py,
line 70, in update_figure
self.draw()
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_qt4agg.py,
line 130, in draw
FigureCanvasAgg.draw(self)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_agg.py,
line 314, in draw
self.figure.draw(self.renderer)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py,
line 46, in draw_wrapper
draw(artist, renderer, *kl)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/figure.py,
line 773, in draw
for a in self.axes: a.draw(renderer)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py,
line 46, in draw_wrapper
draw(artist, renderer, *kl)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axes.py,
line 1735, in draw
a.draw(renderer)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py,
line 46, in draw_wrapper
draw(artist, renderer, *kl)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axis.py,
line 742, in draw
tick.draw(renderer)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/artist.py,
line 46, in draw_wrapper
draw(artist, renderer, *kl)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axis.py,
line 196, in draw
self.label1.draw(renderer)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/text.py,
line 515, in draw
bbox, info = self._get_layout(renderer)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/text.py,
line 272, in _get_layout
'lp', self._fontproperties, ismath=False)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_agg.py,
line 158, in get_text_width_height_descent
font = self._get_agg_font(prop)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/backends/backend_agg.py,
line 195, in _get_agg_font
fname = findfont(prop)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py,
line 1308, in findfont
_rebuild()
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py,
line 1292, in _rebuild
fontManager = FontManager()
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py,
line 984, in __init__
self.ttffiles = findSystemFonts(paths) + findSystemFonts()
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py,
line 341, in findSystemFonts
for f in get_fontconfig_fonts(fontext):
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py,
line 303, in get_fontconfig_fonts
status, output = commands.getstatusoutput(fc-list file)
File
/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/commands.py,
line 56, in getstatusoutput
text = pipe.read()
IOError: [Errno 4] Interrupted system call
Any ideas on what could be causing this?
celil
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