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: #dropee
@blumgap · Post #3154 · 16.07.2025 г., 15:40
💰 Daily Combo :16 Jul ❔️Question of the day :Whitelist 🔗 Link :Dropee #dropee ❤️ 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 #3131 · 16.07.2025 г., 04:04
❔️Question of the day :Whitelist 🔗 Link :Dropee #dropee ❤️ 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 #3119 · 15.07.2025 г., 13:31
💰 Daily Combo :15 Jul ❔️Question of the day :Skin 🔗 Link :Dropee #dropee ❤️ 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 #3106 · 15.07.2025 г., 03:40
❔️Question of the day :Skin 🔗 Link :Dropee #dropee ❤️ 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 #3097 · 14.07.2025 г., 14:04
💰 Daily Combo :14 Jul ❔️Question of the day :Gamefi 🔗 Link :Dropee #dropee ❤️ 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 #3085 · 14.07.2025 г., 03:38
❔️Question of the day :Gamefi 🔗 Link :Dropee #dropee ❤️ 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 #3076 · 13.07.2025 г., 14:43
💰 Daily Combo :13 Jul ❔️Question of the day :Wallet 🔗 Link :Dropee #dropee ❤️ 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 #3065 · 13.07.2025 г., 02:31
❔️Question of the day :Wallet 🔗 Link :Dropee #dropee ❤️ 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 #3056 · 12.07.2025 г., 13:36
💰 Daily Combo :12 Jul ❔️Question of the day :Loot 🔗 Link :Dropee #dropee ❤️ 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 #3047 · 12.07.2025 г., 02:01
❔️Question of the day :Loot 🔗 Link :Dropee #dropee ❤️ 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 #3036 · 11.07.2025 г., 14:12
💰 Daily Combo :11 Jul ❔️Question of the day :Good Game 🔗 Link :Dropee #dropee ❤️ 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 #3027 · 11.07.2025 г., 02:21
❔️Question of the day :Good Game 🔗 Link :Dropee #dropee ❤️ If you appreciate our work, tap a like or heart to support — we’ll keep bringing top passive income projects!
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