def convert_categories(self): start_time = time.time() cursor = connection.cursor() cursor.execute("SELECT * FROM smf_categories;") rows = cursor.fetchall() for row in rows: category = Category() category.old_category_id = row[0] category.name = row[2] category.position = row[1] category.active = True category.save() self.calculate_time(start_time, time.time())