ipywidegtes dropdown

widgets.Dropdown(
    options=['1', '2', '3'],
    value='2',
    description='Number:',
    disabled=False,
)

Here is what the above code is Doing:
1. We create a dropdown widget with three options: 1, 2, 3.
2. We set the default value to be ‘2’.
3. We give the widget a description of ‘Number:’.
4. We set the disabled property to False.