Problemas con usetex en OSX 10.8.

Recientemente me actualicé a OSX 10.8 (Mountain Lion) y mi instalación de python ahora se está comportando mal si bash usar el marcado de látex en las tags de mis plots.

El siguiente código se ejecuta perfectamente:

plt.figure() plt.plot( rand(51), rand(51) ) plt.show() 

Sin embargo, esto no:

 plt.rc( 'text', usetex=True ) plt.figure() plt.plot( rand(51), rand(51) ) plt.show() 

Los errores que vuelvo son:

 Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/wx/_misc.py", line 1342, in Notify self.notify() File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/wx/_core.py", line 14716, in Notify self.result = self.callable(*self.args, **self.kwargs) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/backends/backend_wx.py", line 990, in _onDrawIdle self.draw(*args, **kwargs) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/backends/backend_wxagg.py", line 59, in draw FigureCanvasAgg.draw(self) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py", line 401, in draw self.figure.draw(self.renderer) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/artist.py", line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/figure.py", line 884, in draw func(*args) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/artist.py", line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/axes.py", line 1983, in draw a.draw(renderer) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/artist.py", line 55, in draw_wrapper draw(artist, renderer, *args, **kwargs) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/axis.py", line 1037, in draw ticklabelBoxes, ticklabelBoxes2 = self._get_tick_bboxes(ticks_to_draw, renderer) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/axis.py", line 988, in _get_tick_bboxes extent = tick.label1.get_window_extent(renderer) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/text.py", line 747, in get_window_extent bbox, info = self._get_layout(self._renderer) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/text.py", line 300, in _get_layout ismath=False) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py", line 174, in get_text_width_height_descent renderer=self) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/texmanager.py", line 608, in get_text_width_height_descent page = iter(dvi).next() File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/dviread.py", line 65, in __iter__ have_page = self._read() File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/dviread.py", line 121, in _read self._dispatch(byte) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/dviread.py", line 209, in _dispatch self._fnt_def(k, c, s, d, a, l, n) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/dviread.py", line 362, in _fnt_def tfm = _tfmfile(n[-l:]) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/dviread.py", line 878, in _tfmfile return _fontfile(texname, Tfm, '.tfm', _tfmcache) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/dviread.py", line 868, in _fontfile filename = find_tex_file(texname + suffix) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/site-packages/matplotlib/dviread.py", line 838, in find_tex_file pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/subprocess.py", line 679, in __init__ errread, errwrite) File "/Library/Frameworks/Python.framework/Versions/7.2/lib/python2.7/subprocess.py", line 1228, in _execute_child raise child_exception OSError: [Errno 2] No such file or directory 

¿Alquien más se ha encontrado con este problema? ¿Cómo puedo solucionar esto?

¿Quizás TeX y las utilidades no están en su $PATH ? Debe configurar las cosas de modo que si escribe “tex” o “kpsewhich” en la línea de comandos, invoque esos progtwigs (es decir, obtenga algo de salida en lugar de “comando no encontrado”). Si instaló TeX Live anteriormente, asegúrese de que /usr/texbin esté en la ruta de búsqueda.