matplotlib - problem with python function

Question

def createPlot():
    fig = plt.figure(1, facecolor = 'white')
    fig.clf()
    createPlot.ax1 = plt.subplot(111, frameon = False)
    plotNode('nonLeafNode', (0.2, 0.1), (0.4, 0.8), nonLeafNodes)
    plotNode('LeafNode', (0.8, 0.1), (0.6, 0.8), leafNodes)
    plt.show()

createPlot()

What does createPlot.ax1 in the code mean? I’ve never seen it used like this before, so I’m asking for advice!

Answer 1

Everything in python is an object

It is equivalent to adding an attr to this object

Answer 2

It’s okay as mentioned above, but why isn’t it helpful? createPlot in python is a function and an object at the same time. Objects in python implement similar dictionary types. There is no problem in dynamically adding an attribute to the object.