Installing Python Apps on Mac Lion

[JKPeck]

The Lion version of the OS on the Mac comes with Python 2.7 installed, but it is in /System/Library/Frameworks/..., and this area is not writable by third party apps.

So is there a consensus on what apps that typically install under the Python site-packages directory should do in this situation?  Installing Python from python.org puts it in the writable area /Library/Frameworks/Python.framework.

So, what should a Python app installer do?

Thanks