#!/usr/bin/python # # Show how to add a translucent legend # import pyplot module import matplotlib.pyplot as plt # draw 2 crossing lines plt.plot([0,1], label='going up') plt.plot([1,0], label='going down') # add the legend in the middle of the plot leg = plt.legend(fancybox=True, loc='center') # set the alpha value of the legend: it will be translucent leg.get_frame().set_alpha(0.5) # show the plot plt.show()