[matplotlib-devel] EPS export broken in HEAD?

[Fernando P. <fpe...@gm...>]

Howdy,

a simple

plot(rand(100))
savefig('foo.eps')

is giving me the traceback below.  Is it something I'm doing wrong on my side?

Running on linux, ubuntu 10.10, python2.6.

Thanks for any tips...


f

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/home/fperez/research/dif-tx/src/python/<ipython-input-2-3f85c055f45e>
in <module>()
----> 1 savefig('foo.eps')

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/pyplot.pyc
in savefig(*args, **kwargs)
    426 def savefig(*args, **kwargs):
    427     fig = gcf()
--> 428     return fig.savefig(*args, **kwargs)
    429
    430 @docstring.copy_dedent(Figure.ginput)

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/figure.pyc
in savefig(self, *args, **kwargs)
   1160             kwargs.setdefault('edgecolor',
rcParams['savefig.edgecolor'])
   1161
-> 1162         self.canvas.print_figure(*args, **kwargs)
   1163
   1164         if transparent:

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/backends/backend_qt4agg.pyc
in print_figure(self, *args, **kwargs)
    151
    152     def print_figure(self, *args, **kwargs):
--> 153         FigureCanvasAgg.print_figure(self, *args, **kwargs)
    154         self.draw()

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/backend_bases.pyc
in print_figure(self, filename, dpi, facecolor, edgecolor,
orientation, format, **kwargs)
   1977                 orientation=orientation,
   1978                 bbox_inches_restore=_bbox_inches_restore,
-> 1979                 **kwargs)
   1980         finally:
   1981             if bbox_inches and restore_bbox:

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/backend_bases.pyc
in print_eps(self, *args, **kwargs)
   1744         from backends.backend_ps import FigureCanvasPS # lazy import
   1745         ps = self.switch_backends(FigureCanvasPS)
-> 1746         return ps.print_eps(*args, **kwargs)
   1747
   1748     def print_pdf(self, *args, **kwargs):

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/backends/backend_ps.pyc
in print_eps(self, outfile, *args, **kwargs)
    933
    934     def print_eps(self, outfile, *args, **kwargs):
--> 935         return self._print_ps(outfile, 'eps', *args, **kwargs)
    936
    937

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/backends/backend_ps.pyc
in _print_ps(self, outfile, format, *args, **kwargs)
    966             self._print_figure(outfile, format, imagedpi,
facecolor, edgecolor,
    967                                orientation, isLandscape, papertype,
--> 968                                **kwargs)
    969
    970     def _print_figure(self, outfile, format, dpi=72,
facecolor='w', edgecolor='w',

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/backends/backend_ps.pyc
in _print_figure(self, outfile, format, dpi, facecolor, edgecolor,
orientation, isLandscape, papertype, **kwargs)
   1059             bbox_inches_restore=_bbox_inches_restore)
   1060
-> 1061         self.figure.draw(renderer)
   1062
   1063         if dryrun: # return immediately if dryrun (tightbbox=True)

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/artist.pyc
in draw_wrapper(artist, renderer, *args, **kwargs)
     53     def draw_wrapper(artist, renderer, *args, **kwargs):
     54         before(artist, renderer)
---> 55         draw(artist, renderer, *args, **kwargs)
     56         after(artist, renderer)
     57

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/figure.pyc
in draw(self, renderer)
    872         dsu.sort(key=itemgetter(0))
    873         for zorder, func, args in dsu:
--> 874             func(*args)
    875
    876         renderer.close_group('figure')

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/artist.pyc
in draw_wrapper(artist, renderer, *args, **kwargs)
     53     def draw_wrapper(artist, renderer, *args, **kwargs):
     54         before(artist, renderer)
---> 55         draw(artist, renderer, *args, **kwargs)
     56         after(artist, renderer)
     57

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/axes.pyc
in draw(self, renderer, inframe)
   1981
   1982         for zorder, a in dsu:
-> 1983             a.draw(renderer)
   1984
   1985         renderer.close_group('axes')

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/artist.pyc
in draw_wrapper(artist, renderer, *args, **kwargs)
     53     def draw_wrapper(artist, renderer, *args, **kwargs):
     54         before(artist, renderer)
---> 55         draw(artist, renderer, *args, **kwargs)
     56         after(artist, renderer)
     57

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/axis.pyc
in draw(self, renderer, *args, **kwargs)
   1035
   1036         ticks_to_draw = self._update_ticks(renderer)
-> 1037         ticklabelBoxes, ticklabelBoxes2 =
self._get_tick_bboxes(ticks_to_draw, renderer)
   1038
   1039         for tick in ticks_to_draw:

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/axis.pyc
in _get_tick_bboxes(self, ticks, renderer)
    986         for tick in ticks:
    987             if tick.label1On and tick.label1.get_visible():
--> 988                 extent = tick.label1.get_window_extent(renderer)
    989                 ticklabelBoxes.append(extent)
    990             if tick.label2On and tick.label2.get_visible():

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/text.pyc
in get_window_extent(self, renderer, dpi)
    745             raise RuntimeError('Cannot get window extent w/o renderer')
    746
--> 747         bbox, info = self._get_layout(self._renderer)
    748         x, y = self.get_position()
    749         x, y = self.get_transform().transform_point((x, y))

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/text.pyc
in _get_layout(self, renderer)
    298         tmp, lp_h, lp_bl = get_text_width_height_descent('lp',
    299
self._fontproperties,
--> 300                                                          ismath=False)
    301         offsety = lp_h * self._linespacing
    302

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/backends/backend_ps.pyc
in get_text_width_height_descent(self, s, prop, ismath)
    338         if rcParams['ps.useafm']:
    339             if ismath: s = s[1:-1]
--> 340             font = self._get_font_afm(prop)
    341             l,b,w,h,d = font.get_str_bbox_and_descent(s)
    342

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/backends/backend_ps.pyc
in _get_font_afm(self, prop)
    366         font = self.afmfontd.get(key)
    367         if font is None:
--> 368             fname = findfont(prop, fontext='afm',
directory=self._afm_font_dir)
    369             if fname is None:
    370                 fname = findfont(

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/font_manager.pyc
in findfont(prop, **kw)
   1319     def findfont(prop, **kw):
   1320         global fontManager
-> 1321         font = fontManager.findfont(prop, **kw)
   1322         return font

/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/font_manager.pyc
in findfont(self, prop, fontext, directory, fallback_to_default,
rebuild_if_missing)
   1211                 default_prop = prop.copy()
   1212                 default_prop.set_family(self.defaultFamily[fontext])
-> 1213                 return self.findfont(default_prop, fontext,
directory, False)
   1214             else:
   1215                 # This is a hard fail -- we can't find
anything reasonable,


/home/fperez/usr/opt/lib/python2.6/site-packages/matplotlib/font_manager.pyc
in findfont(self, prop, fontext, directory, fallback_to_default,
rebuild_if_missing)
   1226             result = best_font.fname
   1227
-> 1228         if not os.path.isfile(result):
   1229             if rebuild_if_missing:
   1230                 verbose.report(

/usr/lib/python2.6/genericpath.pyc in isfile(path)
     27     """Test whether a path is a regular file"""
     28     try:
---> 29         st = os.stat(path)
     30     except os.error:
     31         return False

TypeError: coercing to Unicode: need string or buffer, NoneType found