Learning Jupyter 5 - Second Edition

Interact dropdown

We can also use the interact function to produce a drop-down listbox for the user to select from. In the following script we produce a dropdown with two choices:

from ipywidgets import interact 
def myfunction(x): 
    return x 
interact(myfunction, x=['red','green']); 

This script will do the following:

•  Pull in the interact reference,
•  Define a function that will be called whenever the user changes the value of the control
• Calls the interact function with a set of values, which interact will interpret to mean create a dropdown for the user.

If we run this script in a Notebook, we get the following display:

The preceding screenshot ...