[wonderfool]

> I really like how easy it is to have some code in the left window, which I can easily send to an IPython REPL in the right window

This sounds pretty great. Would you mind explaining how that works? Is it specific to Emacs?

[cjauvin]

It's actually quite easy, as it comes pretty much out of the box with recent versions of Emacs (24+) and python.el (not to be confused with the older python-mode.el). I could not find a nice web source for python.el's documentation, but it turns out that directly reading its code is not so bad in this case:

https://github.com/emacs-mirror/emacs/blob/master/lisp/progm...

In particular, you need to set the `python-shell-interpreter` variable to "ipython" (which must be in your path preferably). You can then invoke `run-python` to start a REPL, and C-c C-c to send a buffer to it.

There are a couple more interesting commands with this mode, see:

https://github.com/emacs-mirror/emacs/blob/master/lisp/progm...