Gee thanks Homebrew Python 2.7.3, I really appreciate how you completely ignore --prefix.

gistfile1.txt

[bob@res ipython-src ((9c922f5...))]$ python setup.py install --prefix=$HOME/.ihaskell/ipython
============================================================================
BUILDING IPYTHON
                python: 2.7.3 (default, Nov 10 2012, 13:35:56)  [GCC 4.2.1
                        Compatible Apple Clang 4.1
                        ((tags/Apple/clang-421.11.66))]
              platform: darwin

OPTIONAL DEPENDENCIES
                sphinx: 1.1.3
              pygments: 1.6rc1
                  nose: Not found (required for running the test suite)
               pexpect: no (required for running standalone doctests)
                 pyzmq: 14.0.1
               tornado: 3.1.1
              readline: yes
                jinja2: 2.7.1
running install
running build
running build_py
writing git commit '9c922f5' to build/lib/IPython/utils/_sysinfo.py
running build_scripts
Writing script to build/scripts-2.7/ipython
Writing script to build/scripts-2.7/ipcontroller
Writing script to build/scripts-2.7/ipengine
Writing script to build/scripts-2.7/ipcluster
Writing script to build/scripts-2.7/iptest
Writing script to build/scripts-2.7/ipython2
Writing script to build/scripts-2.7/ipcontroller2
Writing script to build/scripts-2.7/ipengine2
Writing script to build/scripts-2.7/ipcluster2
Writing script to build/scripts-2.7/iptest2
running install_lib
copying build/lib/IPython/utils/_sysinfo.py -> /usr/local/lib/python2.7/site-packages/IPython/utils
byte-compiling /usr/local/lib/python2.7/site-packages/IPython/utils/_sysinfo.py to _sysinfo.pyc
running install_scripts
copying build/scripts-2.7/ipcluster -> /usr/local/share/python
copying build/scripts-2.7/ipcluster2 -> /usr/local/share/python
copying build/scripts-2.7/ipcontroller -> /usr/local/share/python
copying build/scripts-2.7/ipcontroller2 -> /usr/local/share/python
copying build/scripts-2.7/ipengine -> /usr/local/share/python
copying build/scripts-2.7/ipengine2 -> /usr/local/share/python
copying build/scripts-2.7/iptest -> /usr/local/share/python
copying build/scripts-2.7/iptest2 -> /usr/local/share/python
copying build/scripts-2.7/ipython -> /usr/local/share/python
copying build/scripts-2.7/ipython2 -> /usr/local/share/python
changing mode of /usr/local/share/python/ipcluster to 755
changing mode of /usr/local/share/python/ipcluster2 to 755
changing mode of /usr/local/share/python/ipcontroller to 755
changing mode of /usr/local/share/python/ipcontroller2 to 755
changing mode of /usr/local/share/python/ipengine to 755
changing mode of /usr/local/share/python/ipengine2 to 755
changing mode of /usr/local/share/python/iptest to 755
changing mode of /usr/local/share/python/iptest2 to 755
changing mode of /usr/local/share/python/ipython to 755
changing mode of /usr/local/share/python/ipython2 to 755
running install_data
running install_egg_info
Removing /usr/local/lib/python2.7/site-packages/ipython-2.0.0_dev-py2.7.egg-info
Writing /usr/local/lib/python2.7/site-packages/ipython-2.0.0_dev-py2.7.egg-info