Setup modern Python environment with Homebrew

Based on http://ymotongpoo.hatenablog.com/entry/20120516/1337123564
Unfortunately, pythonbrew is owkn...
Let's use virtualenv for switching multiple Python versions!

Install Python and related tools

I mainly use Python3 :)
Latest Python3 version in Homebrew is Python 3.2.3.

% brew install python3
% /usr/local/share/python3/easy_install3 pip
% /usr/local/share/python3/easy_install3 virtualenv
% /usr/local/share/python3/easy_install3 virtualenvwrapper

Configuration in .zshrc

PYTHON_VER=3.2
export HOMEBREW_PREFIX=/usr/local
export VIRTUALENVWRAPPER_PYTHON=$HOMEBREW_PREFIX/bin/python$PYTHON_VER
export VIRTUALENV_BIN=$HOMEBREW_PREFIX/share/python3
export WORKON_HOME=$HOME/.virtualenvs
. $VIRTUALENV_BIN/virtualenvwrapper.sh
export PATH=$VIRTUALENV_BIN:$PATH

mkvenv ()
{
    base_python=`which python$1` 
    mkvirtualenv --distribute --python=$base_python $2
}

Try!

% source .zshrc
% mkvenv 3.2 dev
(dev)% which python
$WORKON_HOME/dev/bin/python
(dev)% python -V                                   
Python 3.2.3
(dev)% pip install tornado
(dev)% deactivate
% source $WORKON_HOME/dev/bin/activate
(dev)%