python --prefix $root/$prefix build install
will generate an error as --prefix is not a global option but an option
of install and it should be written as this :
python build install --prefix $root/$prefix 


git-svn-id: http://www.rocklinux.org/svn/rock-linux/trunk@1219 c5f82cb5-29bc-0310-9cd0-bff59a50e3bc