Compare http://matplotlib.org/api/toolkits/axes_grid.html http://matplotlib.org/api/_as_gen/mpl_toolkits.axes_grid1.html#module-mpl_toolkits.axes_grid1 with 2.0.2 docs: http://matplotlib.org/2.0.2/mpl_toolkits/axes_grid/api/index.html#the-matplotlib-axes-grid1-toolkit-api axes_grid1 docs should probably be moved out of axes_grid anyways, as the latter is (IIRC) being deprecated.