fix buildout. py part was not building

buildout.cfg

@@ -1,6 +1,6 @@
 [buildout]
 develop = .
-parts +=
+parts =
     test
     py
     coverage
@@ -15,7 +15,6 @@ defaults = ['--auto-color', '--auto-progress']
 recipe = zc.recipe.egg
 interpreter = py
 eggs = ${test:eggs}
-scripts =
 
 [coverage]
 recipe = collective.recipe.template