TGINSIGHT SIMILAR POSTS
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
Пребарај: #buybtc
@propheta_indicator · Post #23380 · 25.02.2026 г., 13:52
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@propheta_indicator · Post #23167 · 06.12.2025 г., 08:40
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@propheta_indicator · Post #23298 · 03.02.2026 г., 11:43
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@propheta_indicator · Post #23772 · 06.05.2026 г., 10:21
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@propheta_indicator · Post #23152 · 03.12.2025 г., 14:02
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@propheta_indicator · Post #23186 · 09.12.2025 г., 18:37
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@propheta_indicator · Post #22995 · 03.11.2025 г., 17:35
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@propheta_indicator · Post #23651 · 03.04.2026 г., 03:01
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@propheta_indicator · Post #23517 · 19.03.2026 г., 12:10
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@propheta_indicator · Post #22957 · 30.10.2025 г., 12:26
Oops, we did it again 🤣 #ENAUSDT reached 9th TP in under 2 days! Signal from our VIP PRO channel! With a 5% entry and a $1000 deposit, you could've earned $603! VIPs getting filthy rich by the day ☺️🤑🤑ACCESS TO MANUAL TRADING for 70usdt/month 👉 Looking at those reports and can't believe what you're seing? Go to our reports channel and audit us! @propheta_reports Register and get bonuses up to $6,000 Binance | OKX | ByBit👈🏻click! #cryptochannel#buybtc#tradingindicator
@propheta_indicator · Post #23782 · 08.05.2026 г., 21:04
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@propheta_indicator · Post #23171 · 07.12.2025 г., 10:29
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