import pickle, profile


class Item:
    def __init__(self, name: str):
        self.name = name


def save_items():
    items = [Item('a'), Item('b')]
    with open('items.pickle', 'wb') as f:
        pickle.dump(items, f)


if __name__ == '__main__':
    save_items()
    #profile.run('save_items()')