The inspiration of my previous kernel density estimation post was a blog post by Michael Lerner, who used my JSAnimation tools to do a nice interactive demo of the relationship between kernel density estimation and histograms.
This was on the heels of Brian Granger's excellent PyData NYC Keynote where he live-demoed the brand new IPython interactive tools. This new functionality is very cool. Wes McKinney remarked that day on Twitter that "IPython's interact machinery is going to be a huge deal". I completely agree: the ability to quickly generate interactive widgets to explore your data is going to change the way a lot of people do their daily scientific computing work.
But there's one issue with the new widget framework as it currently stands: unless you're connected to an IPython kernel (i.e. actually running IPython to view your notebook), the widgets are useless. Don't get me wrong: they're incredibly cool when you're actually interacting with data. But the bread-and-butter of this blog and many others is static notebook views: for this purpose, widgets with callbacks to the Python kernel aren't so helpful.
This is where
ipywidgets comes in.