rewrite of the formatters system

weboob/tools/application/formatters/simple.py

@@ -30,10 +30,8 @@ class SimpleFormatter(IFormatter):
         self.field_separator = field_separator
         self.key_value_separator = key_value_separator
 
-    def flush(self):
-        pass
-
-    def format_dict(self, item):
+    def format_obj(self, obj, alias):
+        item = self.to_dict(obj)
         return self.field_separator.join(u'%s%s' % (
             (u'%s%s' % (k, self.key_value_separator) if self.display_keys else ''), v)
             for k, v in item.iteritems())