def _get_model_without_dependencies(self, models_dict):
        '''
        Helper function to find the next model that should be created
        '''
        next_model = None
        if not models_dict:
            return next_model

        for model, dependencies in six.iteritems(models_dict):
            if dependencies == []:
                next_model = model
                break

        if next_model is None:
            raise ValueError('incomplete model definitions, models in dependency '
                             'list not defined: {0}'.format(models_dict))

        # remove the model from other depednencies before returning
        models_dict.pop(next_model)
        for model, dep_list in six.iteritems(models_dict):
            if next_model in dep_list:
                dep_list.remove(next_model)

        return next_model
def _get_model_without_dependencies ( self , models_dict ) : next_model = None if not models_dict : return next_model for model , dependencies in six . iteritems ( models_dict ) : if dependencies == [ ] : next_model = model break if next_model is None : raise ValueError ( 'incomplete model definitions, models in dependency ' 'list not defined: {0}' . format ( models_dict ) ) models_dict . pop ( next_model ) for model , dep_list in six . iteritems ( models_dict ) : if next_model in dep_list : dep_list . remove ( next_model ) return next_model
Helper function to find the next model that should be created