No SVG/PDF export when useing latex package cmbrigth #4167

import matplotlib as m
from matplotlib import pyplot as plt
m.rc('text.latex', preamble='\usepackage{cmbright}')
print m.__version__
'1.4.2'

def plotdemo():
    import numpy as np
    from matplotlib import pyplot as plt
    x=np.arange(0,10,0.001)
    y=np.sin(x)
    plt.suptitle('DEMO',x=0)
    plt.title("Sinus")
    plt.xlabel('x')
    plt.ylabel('sin(x)')
    plt.plot(x,y,label='Sinus(x)')
    plt.legend()
    plt.tight_layout()

plotdemo()
plt.savefig('test.svg')

IOError                                   Traceback (most recent call last)
<ipython-input-7-0ac8fb0b7f39> in <module>()
     19 
     20 plotdemo()
---> 21 plt.savefig('test.svg')

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/pyplot.pyc in savefig(*args, **kwargs)
    575 def savefig(*args, **kwargs):
    576     fig = gcf()
--> 577     res = fig.savefig(*args, **kwargs)
    578     draw()   # need this if 'transparent=True' to reset colors
    579     return res

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/figure.pyc in savefig(self, *args, **kwargs)
   1468             self.set_frameon(frameon)
   1469 
-> 1470         self.canvas.print_figure(*args, **kwargs)
   1471 
   1472         if frameon:

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/backend_bases.pyc in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, **kwargs)
   2192                 orientation=orientation,
   2193                 bbox_inches_restore=_bbox_inches_restore,
-> 2194                 **kwargs)
   2195         finally:
   2196             if bbox_inches and restore_bbox:

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/backends/backend_svg.pyc in print_svg(self, filename, *args, **kwargs)
   1174         else:
   1175             raise ValueError("filename must be a path or a file-like object")
-> 1176         return self._print_svg(filename, svgwriter, fh_to_close, **kwargs)
   1177 
   1178     def print_svgz(self, filename, *args, **kwargs):

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/backends/backend_svg.pyc in _print_svg(self, filename, svgwriter, fh_to_close, **kwargs)
   1202                     bbox_inches_restore=_bbox_inches_restore)
   1203 
-> 1204             self.figure.draw(renderer)
   1205             renderer.finalize()
   1206         finally:

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)
     57     def draw_wrapper(artist, renderer, *args, **kwargs):
     58         before(artist, renderer)
---> 59         draw(artist, renderer, *args, **kwargs)
     60         after(artist, renderer)
     61 

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/figure.pyc in draw(self, renderer)
   1077         dsu.sort(key=itemgetter(0))
   1078         for zorder, a, func, args in dsu:
-> 1079             func(*args)
   1080 
   1081         renderer.close_group('figure')

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)
     57     def draw_wrapper(artist, renderer, *args, **kwargs):
     58         before(artist, renderer)
---> 59         draw(artist, renderer, *args, **kwargs)
     60         after(artist, renderer)
     61 

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/axes/_base.pyc in draw(self, renderer, inframe)
   2090 
   2091         for zorder, a in dsu:
-> 2092             a.draw(renderer)
   2093 
   2094         renderer.close_group('axes')

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)
     57     def draw_wrapper(artist, renderer, *args, **kwargs):
     58         before(artist, renderer)
---> 59         draw(artist, renderer, *args, **kwargs)
     60         after(artist, renderer)
     61 

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/axis.pyc in draw(self, renderer, *args, **kwargs)
   1117 
   1118         for tick in ticks_to_draw:
-> 1119             tick.draw(renderer)
   1120 
   1121         # scale up the axis label box to also find the neighbors, not

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)
     57     def draw_wrapper(artist, renderer, *args, **kwargs):
     58         before(artist, renderer)
---> 59         draw(artist, renderer, *args, **kwargs)
     60         after(artist, renderer)
     61 

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/axis.pyc in draw(self, renderer)
    247 
    248         if self.label1On:
--> 249             self.label1.draw(renderer)
    250         if self.label2On:
    251             self.label2.draw(renderer)

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)
     57     def draw_wrapper(artist, renderer, *args, **kwargs):
     58         before(artist, renderer)
---> 59         draw(artist, renderer, *args, **kwargs)
     60         after(artist, renderer)
     61 

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/text.pyc in draw(self, renderer)
    579             if rcParams['text.usetex']:
    580                 renderer.draw_tex(gc, x, y, clean_line,
--> 581                                   self._fontproperties, angle, mtext=mtext)
    582             else:
    583                 renderer.draw_text(gc, x, y, clean_line,

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/backends/backend_svg.pyc in draw_tex(self, gc, x, y, s, prop, angle, ismath, mtext)
   1120 
   1121     def draw_tex(self, gc, x, y, s, prop, angle, ismath='TeX!', mtext=None):
-> 1122         self._draw_text_as_path(gc, x, y, s, prop, angle, ismath="TeX")
   1123 
   1124     def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/backends/backend_svg.pyc in _draw_text_as_path(self, gc, x, y, s, prop, angle, ismath, mtext)
    927             if ismath == "TeX":
    928                 _glyphs = text2path.get_glyphs_tex(prop, s, glyph_map=glyph_map,
--> 929                                                    return_new_glyphs_only=True)
    930             else:
    931                 _glyphs = text2path.get_glyphs_mathtext(prop, s, glyph_map=glyph_map,

/home/swacker/Programme/anaconda/lib/python2.7/site-packages/matplotlib/textpath.pyc in get_glyphs_tex(self, prop, s, glyph_map, return_new_glyphs_only)
    340 
    341             if font_and_encoding is None:
--> 342                 font = FT2Font(font_bunch.filename)
    343 
    344                 for charmap_name, charmap_code in [("ADOBE_CUSTOM",

IOError: [Errno 2] No such file or directory: u''