Using interactive widgets – a piano in the notebook
Starting with IPython 2.0, we can put interactive widgets in notebooks to create rich GUI applications that interact with our Python kernel. IPython comes with a rich set of graphical controls such as buttons, sliders, and drop-down menus. We have full control of their placement and appearance. We can combine different widgets to form complex layouts. We can even create our own interactive widgets from scratch as we will see in the next recipe, Creating a custom Javascript widget in the notebook – a spreadsheet editor for pandas.
In this recipe, we will show many possibilities offered by the interactive widget API in IPython 2.0+. We will create a very basic piano in the notebook.
Getting ready ...
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