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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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@gazaalanpa · Post #20655 · 31.03.2026 г., 22:14

Palestinian journalist and activist Mustafa Ayyash spent years being a voice for Palestine and Gaza. Today, he needs our voices. He has been arrested in Austrian prisons, and since then, there has been no clear information about his safety or release. His social media accounts have been disabled, contributing to silencing his voice and limiting his impact. Demand his immediate release! #PrisonersExecutionLaw #Prisoners Freedom for Palestinian journalist and activist Mustafa Ayyash from Austrian prisons

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@gazaalanpa · Post #20653 · 31.03.2026 г., 22:10

Palestinian journalist and activist Mustafa Ayyash spent years being a voice for Palestine and Gaza. Today, he needs our voices. He has been arrested in Austrian prisons, and since then, there has been no clear information about his safety or release. His social media accounts have been disabled, contributing to silencing his voice and limiting his impact. Demand his immediate release! #PrisonersExecutionLaw #Prisoners Freedom for Palestinian journalist and activist Mustafa Ayyash from Austrian prisons

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@gazaalanpa · Post #20660 · 31.03.2026 г., 22:31

🚨 Freedom for Palestinian journalist Mustafa Ayyash 🚨 Austria is forcibly detaining Mustafa Ayyash since his arrest, without any judicial ruling, and has disabled his social media accounts to silence his voice. A Palestinian journalist, a voice for Gaza and Palestine, now needs our voices. 📢 We demand immediate disclosure of his safety and his immediate release! #Prisoners #FreedomForMustafaAyyash #ExecutionOfPalestinianPrisoners #PrisonersExecutionLaw

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@gazaalanpa · Post #20690 · 01.04.2026 г., 07:12

O Allah, grant relief to all Muslim prisoners and restore their freedom and safety swiftly, not delayed. #Prisoners #FreedomForMustafaAyash #ExecutionOfPalestinianPrisoners #ExecutionOfPrisoners #FreeMustafaAyash #FreedomForMustafaAyashFromAustrianPrisons

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@gazaalanpa · Post #20663 · 31.03.2026 г., 22:42

O Allah, grant relief to all Muslim prisoners, and restore to them freedom and safety without delay. #Prisoners #FreedomForMustafaAyyash #ExecutionOfPalestinianPrisoners #PrisonersExecutionLaw #freemustafaayash #FreedomForMustafaAyyashFromAustrianPrisons #ExecutionLaw

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@gazaalanpa · Post #20691 · 01.04.2026 г., 07:18

Be Daraa, protecting the prisoners and those released. #PrisonersAndReleasedFriday #PrisonersAreARedLine #WeWillOpenOurAlAqsa #SaveThePrisoners #Prisoners #FreedomForMustafaAyash #ExecutionOfPalestinianPrisoners #ExecutionOfPrisoners #FreeMustafaAyash #FreedomForMustafaAyashFromAustrianPrisons