Short-term: add REPL autocomplete. Long-term: show values along right column!

[elimisteve]

Here's a compelling argument why:

I can point to exactly one tool that has approximately doubled my programming speed, and that’s the IPython notebook (as an alternative to coding into a file and running it).

Part of this is because I can immediately see the results of my computations. But a larger part is because IPython autocompletion is hands-down the best way of learning about Python.

Say I want to manipulate a string in Python. I could open up a new tab, google “Python string api”, [search around all over the place]... Or I could take my string object that already exists in my notebook, type s.<TAB> and see whether any useful-looking methods appeared. Nice!

Let's make it happen!