Mastering Matplotlib 2.x

How to customize widgets

In the case where we want a drop-down that does not necessarily pass a string, a dictionary can be passed, as shown in the following code:

# Dropdowns with dictsdef f(b):    plt.plot(np.arange(0,10), np.power(np.arange(0,10), b))    plt.title("Power Law: $x=ay^b$")powers = {'one':1, 'two':2, 'three':3}interact(f, b=powers)

In the following output, we have a dictionary with strings for keys. Here, we are passing an integer to the index of the power law.

For power one, we get the following output:

For power three, we get the following output:

Hence, ipywidgets provides a simple way of going from zero to interactivity in no ...