Go to http://wiki.python.org/moin/MacPython and http://pythonmac.org/packages/
if you want to download macpython 2.5 or macpython 2.4.4 ("framework"
builds). Installation is very easy (package) and you have all you want
without problem with the 2.3.5 version wich remains installed and
functional (you have 2 python installed)