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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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ChatGPT AI Technology News

@chatgpt_officialnews · Post #22 · 11.02.2025 г., 09:07

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ChatGPT AI Technology News

@chatgpt_officialnews · Post #20 · 28.01.2025 г., 17:01

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🌟 Exciting News for Our Users! 🌟 We’ve upgraded our system with a token mechanism for seamless usage! 🎉 Here's how it works: 💡 Tokens are deducted based on the number of characters in your question and the bot’s response. 📥 Daily Bonus: Every day, you’ll receive a free token refill to keep chatting without interruptions! 💳 Recharge Options: You can now top up your balance using Telegram Stars and cryptocurrency payments (BTC, ETH, USDT, and more)! 🚀 Enjoy more flexibility and freedom with this new system. Thank you for being part of our community – stay tuned for more updates! 💬 ➖➖➖➖🔻 💎@Chatgpt_OfficialNews – Join Us! ⚡️ 🤖 BOT: @Chatgpt_OfficialBOT 📱#ChatGPT#AI#OpenAI#TokenSystem#CryptoPayments#BotSupport#CommunityDriven ➖➖➖➖🔺

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