Emacs 24's python.el + ipython cannot complete module names

Question

I'm using Emacs 24.4.1 on OSX (installed with Homebrew), with the built in python.el, and Python 3 (also installed with Homebrew), along with IPython 2.3.0. I have this in my .emacs:

(setq
 python-shell-interpreter "/usr/local/bin/ipython3"
 python-shell-prompt-regexp "In \\[[0-9]+\\]: "
 python-shell-prompt-output-regexp "Out\\[[0-9]+\\]: "
 python-shell-completion-setup-code
 "from IPython.core.completerlib import module_completion"
 python-shell-completion-module-string-code
 "';'.join(module_completion('''%s'''))\n"
 python-shell-completion-string-code
 "';'.join(get_ipython().Completer.all_completions('''%s'''))\n")

Everything works correctly when I invoke M-x run-python, except one thing: the <tab>-completion of module names doesn't work in the REPL (it says "No match" in the *Messages* buffer). I'm pretty sure it was working with Emacs 24.3, which I upgraded very recently, but I'm not 100% sure. Anyone has an idea what might cause this, or how I could try to debug it?

Answer 1

You might like to try and remove most of your settings above, since Emacs-24.4 should support IPython pretty much out of the box.