How to set configuration file for ipython

Question

I would like ipython to add

from __future__ import division

by default when I run it.

I tried

ipython profile create

and then

emacs /home/foo/.config/ipython/profile_default/ipython_config.py

However I can't tell what I should change in this file. I am using ubuntu.

Answer 1

Add the following line to the file:

c.InteractiveShellApp.exec_lines = ['from __future__ import division']

Answer 2

Maybe try

ipython -c 'from __future__ import division' -i

Answer 3

Here is what works for me. Open the file $HOME/.ipython/ipy_user_conf.py, add these lines:

import IPython.ipapi
ip = IPython.ipapi.get()
ip.options.autoexec.append('from __future__ import division')