[Matplotlib-users] Missing "Edit Curves..." button in NavigationToolbar2Wx

[Jonno <jon...@gm...>]

Can anyone explain to me why I don't see the "Edit Curves Line and Axes
Parameters" button in the matplotlib toolbar when using
matplotlib.backends.backend_wxagg.NavigationToolbar2Wx

The example code here creates a Matplotlib plot with the matplotlib toolbar
including all buttons except for the one above.