The concept of closures is something that I've been familiar with for a while, but I haven't used in my own work until recently. I started thinking more about closures while reading A Software Engineer Learns HTML5, JavaScript and jQuery by Dane Cameron (an excellent book, btw). They are introduced …

I've been using IPython notebooks a lot lately for both my personal and professional research and analysis projects. It's a great tool for keeping code, visualization and analysis together in one place. It's also convenient for communicating results. Just export your notebook to HTML and it's ready to distribute... except …