RuntimeError: LaTeX was not able to process the following string

Trying to reproduce the example:

import matplotlib
import matplotlib.pyplot as plt
%matplotlib inline
plt.style.use(['science','ieee'])

x = np.linspace(0.75, 1.25, 201)

def model(x, p):
    return x ** (2 * p + 1) / (1 + x ** (2 * p))

fig, ax = plt.subplots()
for p in [10, 15, 20, 30, 50, 100]:
    ax.plot(x, model(x, p), label=p)
ax.legend(title=r'Order')
ax.set(xlabel=r'$V_0 / V_\mathrm{{gap}}$')
ax.set(ylabel=r'$I_\mathrm{{dc}}^0 / I_\mathrm{{gap}}$')
ax.autoscale(tight=True)
plt.show()


RuntimeError                              Traceback (most recent call last)
~/anaconda3/lib/python3.6/site-packages/IPython/core/formatters.py in __call__(self, obj)
    330                 pass
    331             else:
--> 332                 return printer(obj)
    333             # Finally look for special method names
    334             method = get_real_method(obj, self.print_method)

~/anaconda3/lib/python3.6/site-packages/IPython/core/pylabtools.py in <lambda>(fig)
    235 
    236     if 'png' in formats:
--> 237         png_formatter.for_type(Figure, lambda fig: print_figure(fig, 'png', **kwargs))
    238     if 'retina' in formats or 'png2x' in formats:
    239         png_formatter.for_type(Figure, lambda fig: retina_figure(fig, **kwargs))

~/anaconda3/lib/python3.6/site-packages/IPython/core/pylabtools.py in print_figure(fig, fmt, bbox_inches, **kwargs)
    119 
    120     bytes_io = BytesIO()
--> 121     fig.canvas.print_figure(bytes_io, **kw)
    122     data = bytes_io.getvalue()
    123     if fmt == 'svg':

~/anaconda3/lib/python3.6/site-packages/matplotlib/backend_bases.py in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, **kwargs)
   2198                     orientation=orientation,
   2199                     dryrun=True,
-> 2200                     **kwargs)
   2201                 renderer = self.figure._cachedRenderer
   2202                 bbox_inches = self.figure.get_tightbbox(renderer)

~/anaconda3/lib/python3.6/site-packages/matplotlib/backends/backend_agg.py in print_png(self, filename_or_obj, *args, **kwargs)
    543 
    544     def print_png(self, filename_or_obj, *args, **kwargs):
--> 545         FigureCanvasAgg.draw(self)
    546         renderer = self.get_renderer()
    547         original_dpi = renderer.dpi

~/anaconda3/lib/python3.6/site-packages/matplotlib/backends/backend_agg.py in draw(self)
    462 
    463         try:
--> 464             self.figure.draw(self.renderer)
    465         finally:
    466             RendererAgg.lock.release()

~/anaconda3/lib/python3.6/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     61     def draw_wrapper(artist, renderer, *args, **kwargs):
     62         before(artist, renderer)
---> 63         draw(artist, renderer, *args, **kwargs)
     64         after(artist, renderer)
     65 

~/anaconda3/lib/python3.6/site-packages/matplotlib/figure.py in draw(self, renderer)
   1142 
   1143             mimage._draw_list_compositing_images(
-> 1144                 renderer, self, dsu, self.suppressComposite)
   1145 
   1146             renderer.close_group('figure')

~/anaconda3/lib/python3.6/site-packages/matplotlib/image.py in _draw_list_compositing_images(renderer, parent, dsu, suppress_composite)
    137     if not_composite or not has_images:
    138         for zorder, a in dsu:
--> 139             a.draw(renderer)
    140     else:
    141         # Composite any adjacent images together

~/anaconda3/lib/python3.6/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     61     def draw_wrapper(artist, renderer, *args, **kwargs):
     62         before(artist, renderer)
---> 63         draw(artist, renderer, *args, **kwargs)
     64         after(artist, renderer)
     65 

~/anaconda3/lib/python3.6/site-packages/matplotlib/axes/_base.py in draw(self, renderer, inframe)
   2424             renderer.stop_rasterizing()
   2425 
-> 2426         mimage._draw_list_compositing_images(renderer, self, dsu)
   2427 
   2428         renderer.close_group('axes')

~/anaconda3/lib/python3.6/site-packages/matplotlib/image.py in _draw_list_compositing_images(renderer, parent, dsu, suppress_composite)
    137     if not_composite or not has_images:
    138         for zorder, a in dsu:
--> 139             a.draw(renderer)
    140     else:
    141         # Composite any adjacent images together

~/anaconda3/lib/python3.6/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)
     61     def draw_wrapper(artist, renderer, *args, **kwargs):
     62         before(artist, renderer)
---> 63         draw(artist, renderer, *args, **kwargs)
     64         after(artist, renderer)
     65 

~/anaconda3/lib/python3.6/site-packages/matplotlib/axis.py in draw(self, renderer, *args, **kwargs)
   1136         ticks_to_draw = self._update_ticks(renderer)
   1137         ticklabelBoxes, ticklabelBoxes2 = self._get_tick_bboxes(ticks_to_draw,
-> 1138                                                                 renderer)
   1139 
   1140         for tick in ticks_to_draw:

~/anaconda3/lib/python3.6/site-packages/matplotlib/axis.py in _get_tick_bboxes(self, ticks, renderer)
   1076         for tick in ticks:
   1077             if tick.label1On and tick.label1.get_visible():
-> 1078                 extent = tick.label1.get_window_extent(renderer)
   1079                 ticklabelBoxes.append(extent)
   1080             if tick.label2On and tick.label2.get_visible():

~/anaconda3/lib/python3.6/site-packages/matplotlib/text.py in get_window_extent(self, renderer, dpi)
    965             raise RuntimeError('Cannot get window extent w/o renderer')
    966 
--> 967         bbox, info, descent = self._get_layout(self._renderer)
    968         x, y = self.get_unitless_position()
    969         x, y = self.get_transform().transform_point((x, y))

~/anaconda3/lib/python3.6/site-packages/matplotlib/text.py in _get_layout(self, renderer)
    351         tmp, lp_h, lp_bl = renderer.get_text_width_height_descent('lp',
    352                                                          self._fontproperties,
--> 353                                                          ismath=False)
    354         offsety = (lp_h - lp_bl) * self._linespacing
    355 

~/anaconda3/lib/python3.6/site-packages/matplotlib/backends/backend_agg.py in get_text_width_height_descent(self, s, prop, ismath)
    228             fontsize = prop.get_size_in_points()
    229             w, h, d = texmanager.get_text_width_height_descent(s, fontsize,
--> 230                                                                renderer=self)
    231             return w, h, d
    232 

~/anaconda3/lib/python3.6/site-packages/matplotlib/texmanager.py in get_text_width_height_descent(self, tex, fontsize, renderer)
    674         else:
    675             # use dviread. It sometimes returns a wrong descent.
--> 676             dvifile = self.make_dvi(tex, fontsize)
    677             dvi = dviread.Dvi(dvifile, 72 * dpi_fraction)
    678             try:

~/anaconda3/lib/python3.6/site-packages/matplotlib/texmanager.py in make_dvi(self, tex, fontsize)
    421                      'string:\n%s\nHere is the full report generated by '
    422                      'LaTeX: \n\n' % repr(tex.encode('unicode_escape')) +
--> 423                      report))
    424             else:
    425                 mpl.verbose.report(report, 'debug')

RuntimeError: LaTeX was not able to process the following string:
b'lp'
Here is the full report generated by LaTeX: 



<matplotlib.figure.Figure at 0x7fbdfc553a20>```

[garrettj403]

Hi @taneta,

This error seems to be caused by LaTeX. You can disable LaTeX by using:

from matplotlib import rc
rc("text", usetex=False)

Otherwise, I’ve also added a new style to disable LaTeX:

plt.style.use(['science','ieee','no-latex'])

Please let me know if that works!

[ZhangYuef]

I faced this problem when I used Jupyter notebook.