Fix without result

2015-09-05 11:45:39 +03:00
parent faa7ee6030
commit e2e8b6fc86
2 changed files with 8 additions and 3 deletions
@@ -81,9 +81,10 @@ class SortedCorrectedCommandsSequence(object):

    def _realise(self):
        """Realises generator, removes duplicates and sorts commands."""
-        commands = self._remove_duplicates(self._commands)
-        self._cached = [self._cached[0]] + sorted(
-            commands, key=lambda corrected_command: corrected_command.priority)
+        if self._cached:
+            commands = self._remove_duplicates(self._commands)
+            self._cached = [self._cached[0]] + sorted(
+                commands, key=lambda corrected_command: corrected_command.priority)
        self._realised = True
        debug('SortedCommandsSequence was realised with: {}, after: {}'.format(
            self._cached, '\n'.join(format_stack())), self._settings)