I want to open a python interpreter in a buffer with ipython. So I use that, from the term-mode :
(make-term "ipython" "/usr/bin/env" nil "ipython" (or filename "")
"--TerminalIPythonApp.force_interact=True"))
But I don't know where to precise the python version that I want to use : my default version is python2.7 and I want to start an interpreter with python 3.4.