In [1]: import matplotlib.pyplot as plt
In [2]: plt.plot(range(5))
Out[2]: [<matplotlib.lines.Line2D at 0x1085feef0>]
In [3]: plt.show()

In [4]: plt.xkcd()
Out[4]: <matplotlib.rc_context at 0x1097b3d68>

In [5]: plt.plot(range(5))
Out[5]: [<matplotlib.lines.Line2D at 0x10a2eb240>]

In [6]: plt.show()
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/artist.py 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

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/figure.py in draw(self, renderer)
   1083         dsu.sort(key=itemgetter(0))
   1084         for zorder, a, func, args in dsu:
-> 1085             func(*args)
   1086
   1087         renderer.close_group('figure')

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/artist.py 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

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/axes/_base.py in draw(self, renderer, inframe)
   2108
   2109         for zorder, a in dsu:
-> 2110             a.draw(renderer)
   2111
   2112         renderer.close_group('axes')

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/artist.py 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

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/lines.py in draw(self, renderer)
    713                 funcname = self.drawStyles.get(self._drawstyle, '_draw_lines')
    714                 drawFunc = getattr(self, funcname)
--> 715                 drawFunc(renderer, gc, tpath, affine.frozen())
    716
    717         if self._marker:

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/lines.py in _draw_lines(self, renderer, gc, path, trans)
   1070
   1071     def _draw_lines(self, renderer, gc, path, trans):
-> 1072         self._lineFunc(renderer, gc, path, trans)
   1073
   1074     def _draw_steps_pre(self, renderer, gc, path, trans):

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/lines.py in _draw_solid(self, renderer, gc, path, trans)
   1110     def _draw_solid(self, renderer, gc, path, trans):
   1111         gc.set_linestyle('solid')
-> 1112         renderer.draw_path(gc, path, trans)
   1113
   1114     def _draw_dashed(self, renderer, gc, path, trans):

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/patheffects.py in draw_path(self, gc, tpath, affine, rgbFace)
    113         for path_effect in self._path_effects:
    114             path_effect.draw_path(self._renderer, gc, tpath, affine,
--> 115                                   rgbFace)
    116
    117     def draw_markers(self, gc, marker_path, marker_trans, path, *args,

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/patheffects.py in draw_path(self, renderer, gc, tpath, affine, rgbFace)
    215     def draw_path(self, renderer, gc, tpath, affine, rgbFace):
    216         Stroke.draw_path(self, renderer, gc, tpath, affine, rgbFace)
--> 217         renderer.draw_path(gc, tpath, affine, rgbFace)
    218
    219

/Users/xiaoweiz/anaconda/lib/python3.5/site-packages/matplotlib/backends/backend_macosx.py in draw_path(self, gc, path, transform, rgbFace)
     56             rgbFace = tuple(rgbFace)
     57         linewidth = gc.get_linewidth()
---> 58         gc.draw_path(path, transform, linewidth, rgbFace)
     59
     60     def draw_markers(self, gc, marker_path, marker_trans, path, trans, rgbFace=None):

AttributeError: 'GraphicsContextBase' object has no attribute 'draw_path'