Traceback (most recent call last):  File "demo_axes_grid2.py", line 112, in <module>    plt.draw()  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/pyplot.py", line 467, in draw    get_current_fig_manager().canvas.draw()  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/backends/backend_qt4agg.py", line 148, in draw    FigureCanvasAgg.draw(self)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/backends/backend_agg.py", line 439, in draw    self.figure.draw(self.renderer)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/artist.py", line 54, in draw_wrapper    draw(artist, renderer, *args, **kwargs)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/figure.py", line 999, in draw    func(*args)  File "/home/rmay/.local/lib/python2.7/site-packages/mpl_toolkits/axes_grid1/axes_divider.py", line 892, in draw    self._axes_class.draw(self, renderer, inframe)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/artist.py", line 54, in draw_wrapper    draw(artist, renderer, *args, **kwargs)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/axes.py", line 2093, in draw    a.draw(renderer)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/offsetbox.py", line 1055, in draw    self.get_child().draw(renderer)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/offsetbox.py", line 753, in draw    self._text.draw(renderer)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/artist.py", line 54, in draw_wrapper    draw(artist, renderer, *args, **kwargs)  File "/home/rmay/.local/lib/python2.7/site-packages/matplotlib/text.py", line 608, in draw    ismath=ismath, mtext=self)TypeError: draw_text() got an unexpected keyword argument 'mtext'