Pyplot.imshow() "None" interpolation is not supported on Mac OSX #4320
Description
When passing in interpolation='none' to the imshow() function, I get the following error:
/usr/local/lib/python2.7/site-packages/matplotlib/image.py:649: UserWarning: The backend (<class 'matplotlib.backends.backend_macosx.RendererMac'>) does not support interpolation='none'. The image will be interpolated with 'nearest` mode.
I'm on Mac OS X 10.10.3, Python 2.7.9. It seems strange that the no interpolation mode would not be supported here.