code: def updateTitle(self, atitle):
          
          if atitle and os.path.exists(atitle):
              if _isInstalled(atitle):
                  atitle += '  [installed]'
              elif not os.access(atitle, os.W_OK):
                  atitle += '  [read only]'
          super(ConfigObjEparDialog, self).updateTitle(atitle)
docs: Override so we can append read-only status.