Oops!  Use python_d.exe _before_ it's destroyed :-)
diff --git a/Tools/buildbot/clean.bat b/Tools/buildbot/clean.bat
index 7e7d713..4b94922 100644
--- a/Tools/buildbot/clean.bat
+++ b/Tools/buildbot/clean.bat
@@ -1,6 +1,6 @@
 @rem Used by the buildbot "clean" step.
 call "%VS71COMNTOOLS%vsvars32.bat"
 cd PCbuild
-devenv.com /clean Debug pcbuild.sln
 @echo Deleting .pyc/.pyo files ...
 python_d.exe rmpyc.py
+devenv.com /clean Debug pcbuild.sln