code: def _get_app_version(self, app_config):
          
  
          base_name = app_config.__module__.split('.')[0]
          module = __import__(base_name)
          return getattr(module, '__version__', 'N/A')
docs: Some plugins ship multiple applications and extensions.
          However all of them have the same version, because they are released together.
          That's why only-top level module is used to fetch version information.