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Изворен канал @pythonotes · Post #397 · 12 ное.

Использование Pydantic сегодня стало нормой, и это правильно. Но иногда на ревью вижу, что используют его не всегда корректно. Например, метод BaseModel.model_dump() по умолчанию не преобразует стандартные типы, такие как datetime, UUID или Decimal, в простой сериализуемый для JSON вид. Тогда пишут кастмоный сериализатор для этих типов чтобы функция json.dump() не падала с ошибкой. import uuid from datetime import datetime from decimal import Decimal from uuid import UUID from pydantic import BaseModel class MyModel(BaseModel): id: UUID date: datetime value: Decimal obj = MyModel( id=uuid.uuid4(), date=datetime.now(), value='1.23' ) print(obj.model_dump()) # не подходит для json.dump # { # 'id': UUID('4f8c1bc4-25fd-40cd-9dbe-2c73639b0dc1'), # 'date': datetime.datetime(2025, 12, 12, 12, 12, 12, 111111), # 'value': Decimal('1.23') # } # добавляем свой кастомный сериализатор json.dumps(obj.model_dump(), cls=MySerializer) # { # 'id': '4f8c1bc4-25fd-40cd-9dbe-2c73639b0dc1', # 'date': '2025-12-12T12:12:12.111111', # 'value': '1.23' # } В данном случае класс MySerializer обрабатывает datetime, UUID и Decimal. Например так: class MySerializer(json.JSONEncoder): def default(self, o): if isinstance(o, Decimal): return str(o) elif isinstance(o, datetime): return o.isoformat() elif isinstance(o, UUID): return str(o) return super().default(o) Специально для тех, кто всё еще так делает - в этом нет необходимости! Pydantic может это сделать сам, просто нужно добавить параметр mode="json". json.dumps(obj.model_dump(mode="json")) # { # 'id': '4f8c1bc4-25fd-40cd-9dbe-2c73639b0dc1', # 'date': '2012-12-12T12:12:12.111111', # 'value': '1.23' # } #pydantic#libs

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Luckydonalds Bots: Development/Status

@luckydonaldsbots · Post #243 · 17.05.2020 г., 14:42

In case you're using @RpAliasBot you have to re-register any of your clients, so they use the new server. That is because for data protection sake I don't store anything about your registered bots, not even the fact that I'm running them. Only telegram knows that, and my server in the short milliseconds it's processing telegram's incoming updates. Therefore I sadly can't automatically migrate them for you, I appologize for the inconvinience. If you care for technical details: The prefix you set, which is the only data it needsto know, is stored all in the URL. Therefore my server will know it only when telegram calls it, but doesn't need to keep it around for itself.The benifit for you is privacy,and for me that I don't have to store anything which keeps the costs low. #RpAliasBot

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Luckydonalds Bots: Development/Status

@luckydonaldsbots · Post #228 · 23.03.2020 г., 11:07

Emergency Maintainence: I don't know why, but since the weekend the load on my server has doubled. Maybe telelgram is more active as more people are at home. Therefore I'm in the process of upgrading the server. Until the new hardware is in place I'll turn off some non-essencial bots and services: @BassBoostBot, @moustache_bot, @RpAliasBot, @text2voice_bot, @YATubeBot and @r2tBot I will also turn on some alternative derpibooru bots, if you're using @derpyboorubot or @trixieboorubot please use @ponbot instead. For the NSFW @clopclopbot please use @p0nbot instead, I plan on keeping those online for now. #BassBoostBot#moustache_bot#RpAliasBot#derpyboorubot#text2voice_bot#r2tBot#YATubeBot#downtime#issue