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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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@ssbclear · Post #9853 · 07.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Crisis Education Women Fitness Justice Law Sacrifice

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@ssbclear · Post #9847 · 06.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Leader Alone Friend Courage Obstacle Time Nation

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@ssbclear · Post #9841 · 05.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Fear Command Influence Courage Stress Risk Challenge

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@ssbclear · Post #9835 · 04.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Soldier War Mother Success Abide Allow Danger

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@ssbclear · Post #9830 · 03.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Learn Hard work Criticism Bold Team Ability

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@ssbclear · Post #9820 · 01.02.2026 г., 03:29

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Energy Romance Boyfriend Father Deep

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@ssbclear · Post #9813 · 31.01.2026 г., 03:27

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Revise Ahead Thought Adopt Practice

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@ssbclear · Post #9809 · 30.01.2026 г., 03:27

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Legend Sight Sequence Sweet Simmer

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@ssbclear · Post #9804 · 29.01.2026 г., 03:28

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Refine Answer Time Queen Shallow

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@ssbclear · Post #9797 · 28.01.2026 г., 03:25

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Cloud Brave Crook Sad Aware

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@ssbclear · Post #9791 · 27.01.2026 г., 03:25

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Safe Joy Mingle Mercy Follow

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@ssbclear · Post #9784 · 26.01.2026 г., 03:20

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Above Sink Depression Crime Amount

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