Hi All, Here's the scenario; we have per-project buildouts, but where and how people lay out their checkouts and how they access svn (svn:// versus http:// versus https:// externally). Buildout lends itself to this flexibility by having the per-project buildouts use templated values, with those values being specified in ~/.buildout/default.cfg ...except, this doesn't seem to work for buildout:extends. For example, here's a project buildout: [buildout] extends = ${buildout:base_location}/versions/repoze.bfg-1.2-versions.cfg ... And here's what's in ~/.buildout/default.cfg: [buildout] base_location = /Users/chris/LocalSVN/base ...but, the normal ${} substitution doesn't appear to happen in the extends line, so I get the following error: IOError: [Errno 2] No such file or directory: '/Users/chris.withers/LocalSVN/demoapp/${buildout:base_location}/versions/repoze.bfg-1.2-versions.cfg' What am I doing wrong? How can I achieve my aims with buildout 1.4.3 or later? cheers, Chris