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

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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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#pydantic#libs
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Пребарај: #ukraineconflict

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BadVolf

@badvolfnews · Post #1304 · 04.12.2023 г., 17:25

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📢 BREAKING NEWS 📢 Russian Electronic Warfare systems successfully thwarted missile attacks in Chaplinsky district, Herston region. Rockets deviated from their course, one landed in open space, while the other hit a non-residential building. No casualties reported. 🚀🚫🏢#RussiaDefends Governor Saldo previously accused Russian forces of unleashing a "firestorm" in Krynyky, a village on the left bank of Dnipro river. He also revealed that three Ukrainian missiles were intercepted over Genichesk district. 💥🛡️#UkraineConflict In a recent development, Ukrainian troops launched a rocket strike on Skadovsk, injuring 11 people. Russian Investigative Committee has opened a criminal case. ⚠️🚀#WarTactics President Zelensky wonders why Ukraine cannot extend its operations into Russian territory. 🤔#UkraineVsRussia https://www.gazeta.ru/army/news/2023/11/17/21732643.shtml Subscribe to @BadVolfNews

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#russiadefends#ukraineconflict#wartactics#ukrainevsrussia
Crypto M - Crypto News

@CryptoM · Post #64820 · 10.04.2026 г., 02:23

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🚀 Bank of Korea Governor: Iran Conflict Poses Greater Impact on South Korea's Inflation and Growth Than Ukraine Conflict Bank of Korea Governor Lee Chang-yong has stated that the ongoing conflict in Iran is expected to have a more significant impact on South Korea's inflation and economic growth prospects compared to the conflict in Ukraine. According to Jin10, Lee emphasized the potential repercussions of the Iran conflict on the South Korean economy, highlighting concerns over inflationary pressures and growth challenges. The governor's remarks underscore the heightened economic risks associated with geopolitical tensions in the region, which could affect South Korea's economic stability and policy decisions. #SouthKorea#BankOfKorea#IranConflict#UkraineConflict#Inflation#EconomicGrowth#GeopoliticalRisks#Economy

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#southkorea#bankofkorea#iranconflict#ukraineconflict#inflation#economicgrowth#geopoliticalrisks#economy
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