>>> """
===============
Simple Colorbar
===============

"""
... import matplotlib.pyplot as plt
... from mpl_toolkits.axes_grid1 import make_axes_locatable
... import numpy as np
... 
... ax = plt.subplot()
... im = ax.imshow(np.arange(100).reshape((10, 10)))
... 
... # create an axes on the right side of ax. The width of cax will be 5%
... # of ax and the padding between cax and ax will be fixed at 0.05 inch.
... divider = make_axes_locatable(ax)
... cax = divider.append_axes("right", size="5%", pad=0.05)
... 
... plt.colorbar(im, cax=cax)
... 
... plt.show()
...