debug script ignore non scodoc folders in Zope

debug.py

@@ -67,7 +67,11 @@ def go(app, n=0, verbose=True):
 def go_dept(app, dept, verbose=True):
     objs = app.ScoDoc.objectValues("Folder")
     for o in objs:
-        context = o.Scolarite
+        try:
+            context = o.Scolarite
+        except AttributeError:
+            # ignore other folders, like old "icons"
+            continue
         if context.DeptId() == dept:
             if verbose:
                 print("context in dept ", context.DeptId())