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: #rewards
@htxglobalannouncementchannel · Post #14967 · 15.05.2026 г., 01:42
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@htxglobalannouncementchannel · Post #14492 · 10.02.2026 г., 07:17
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@gametynews · Post #823 · 02.04.2025 г., 12:24
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@gametynews · Post #803 · 15.03.2025 г., 17:28
🚀Gamety Monthly Run I is LIVE on Zealy! Another chance to win $500 in $GTY! 🏆 Top 20 Zealy users will be rewarded: 🥇 1st Place – $75 🥈 2nd-10th – $30 each 🥉 11th-20th – $16 each Don’t wait! Complete Zealy tasks now and climb the leaderboard! #Rewards will be distributed 1 month after the campaign ends. 🔗 Join now: https://zealy.io/cw/gagentai 🔈Don’t miss this $GTY Era/ 🕊Tweet 📎Important Links: $GTY Dextools|Website | X | Chat (FULL) | Indonesian Chat | African Chat | Vietnamese Chat | CIS Chat | Discord | Announcement | YouTube | Medium | New Bot | $GTY Staking | $GTY Coinstore
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@airdrop_presents · Post #1136 · 30.03.2022 г., 18:30
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@airdrop_presents · Post #1089 · 27.03.2022 г., 15:04
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@airdrop_presents · Post #1039 · 23.03.2022 г., 04:10
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@airdrop_presents · Post #1009 · 19.03.2022 г., 04:42
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@airdrop_presents · Post #997 · 17.03.2022 г., 17:25
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@airdrop_presents · Post #903 · 12.03.2022 г., 11:15
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@htxglobalannouncementchannel · Post #14367 · 20.01.2026 г., 07:04
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@htxglobalannouncementchannel · Post #14106 · 08.12.2025 г., 06:10
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