Previously there was a try to use zc.recipe.egg directly, by using interpreter
parameter. But such interpreter is not able to accept -V option, so it is
required to invoke python by executing existing one.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@32966 20353a03-c40f-0410-a6d1-a30d3c3de9de