datetime和date如何转json

import jsonfrom datetime import datetime, dateclass MyJson(json.JSONEncoder): ???def default(self, o): ???????if isinstance(o, datetime): ???????????return o.strftime(‘%Y-%m-%d %X‘) ???????elif isinstance(o, date): ???????????return o.strftime(‘%Y-%m-%d‘) ???????else: ???????????super().default(self, o)date_time = {‘day1‘: datetime.today(), ‘day2‘: date.today()}print(json.dumps(date_time, cls=MyJson))