Pylint checks bark about:

  raise NotImplemented

looks like it should be

  raise NotImplementedError

the former is a constant and the latter is an exception.

Author: rouilj

roundup/backends/rdbms_common.py

@@ -209,7 +209,7 @@ def open_connection(self):
 
             Must call self.load_dbschema()
         """
-        raise NotImplemented
+        raise NotImplementedError
 
     def sql(self, sql, args=None, cursor=None):
         """ Execute the sql with the optional args.