brain path decode

product/ZSQLCatalog/Extensions/zsqlbrain.py

@@ -49,6 +49,10 @@ class ZSQLBrain(Acquisition.Implicit):
     path = self.path
     # TODO py3: understand why this is bytes sometimes
     if not isinstance(path, str):
+      stack = ''.join(traceback.format_stack())
+      LOG('Products.ZSQLCatalog.Extentions.zsqlbrain.ZSQLBrain', WARNING,
+          "wrong getPath at stack %s"  % stack)
+      raise ValueError("wrong type %r !", (path, ))
       path = path.decode()
     return path