While beeing at the Zope3 Training with Philipp I learned about Ian Bickings workingenv.
With workingenv you can easily create an isolated environment for python development. This is especially useful if you download eggs and don’t want to have them in your system python.

Here’s how you use it:

wget http://svn.colorstudy.com/home/ianb/workingenv/workingenv.py
python workingenv.py –home /Users/batlogg/zope/testenv
cd /Users/batlogg/zope/testenv
source bin/activate
bin/easy_install hurry.query

Thanks Ian and Philipp