http://stackoverflow.com/questions/1775954/using-python-3-1-with-textmate

Variable can be set in TextMate either on a global or on a per project basis. It seems some of the internals are coded using Python 2.x, therefore a global switch to the backwards-incompatible 3.x is not recommended.

Project based variable can be set by opening a project, deselecting any text files, and clicking on the little i-icon in the project window. My path for Python 3.1 is:

TM_PYTHON
/Library/Frameworks/Python.framework/
Versions/3.1/bin/python3

Your milage might vary.

Instruction from the TextMate site, this is the minimal info for installing TextMate Bundles


mkdir -p /Library/Application\ Support/TextMate/Bundles
cd /Library/Application\ Support/TextMate/Bundles
svn co http://svn.textmate.org/trunk/Bundles/Haskell.tmbundle


Update all bundles

cd /Library/Application\ Support/TextMate/Bundles
svn up *.tmbundle