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: #hrum
@blumgap · Post #3156 · 16.07.2025 г., 16:30
❓️Quote of the Day :16 Jul 🙋♂ Answer :Booker T. Washington 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #3123 · 15.07.2025 г., 16:22
❓️Quote of the Day :15 Jul 🙋♂ Answer :Buddha 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #3099 · 14.07.2025 г., 16:20
❓️Quote of the Day :14 Jul 🙋♂ Answer :Roy T. Bennett 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #3078 · 13.07.2025 г., 16:36
❓️Quote of the Day :13 Jul 🙋♂ Answer :Pablo Picasso 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #3058 · 12.07.2025 г., 16:58
❓️Quote of the Day :12 Jul 🙋♂ Answer :Mother Teresa 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #3037 · 11.07.2025 г., 16:33
❓️Quote of the Day :11 Jul 🙋♂ Answer :Henry Ford 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #3021 · 10.07.2025 г., 16:42
❓️Quote of the Day :10 Jul 🙋♂ Answer :Maya Angelou 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #3004 · 09.07.2025 г., 18:01
❓Quote of the Day :09 Jul 🙋♂️ Answer :Sam Levenson 🔗 Link :Hrum #hrum
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@airdrop_presents · Post #2995 · 01.09.2024 г., 13:56
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@blumgap · Post #2983 · 08.07.2025 г., 16:47
❓️Quote of the Day :08 Jul 🙋♂ Answer :Zig Ziglar 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #2968 · 07.07.2025 г., 16:21
❓️Quote of the Day :07 Jul 🙋♂ Answer :Colin R. Davis 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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@blumgap · Post #2948 · 06.07.2025 г., 16:46
❓️Quote of the Day :06 Jul 🙋♂ Answer :Mark Twain 🔗 Link :Hrum #hrum ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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