I intentionally left out /usr/local/bin/python from the 2.5.2 extension as it is only intended for library support of some extensions that have not been rebuilt against 2.6. Even if I used the startup script in 2.5.2 to create the symlink if it is not already there, and use the script in 2.6 to overwrite it, there would still be confusion as to which python one is using. I will add to the info file of 2.5.2 to create the /usr/local/bin/python symlink if one wants to use 2.5.2 as their main python.