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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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Crypto News & Web3 Events | TON Ecosystem

@tonevents_en · Post #1732 · 20.08.2025 г., 09:37

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Blockchain Life 2025, Dubai | October 28–29 The 15th anniversary edition of Blockchain Life is set to become the largest crypto event of the year for those building careers and businesses in the Web3 space. With over 15,000 attendees expected, the forum will feature three content stages and a vibrant open-air program. Five reasons to get this on your schedule.: 1️⃣Positioning for the next market phase. Industry experts will share growth scenarios and actionable steps to help you make the most of the upcoming cycle. 2️⃣First-hand tech trends. Industry leaders will present innovations that could go mainstream within months. Simultaneous translation into Russian will be available. 3️⃣Global networking. With representatives from funds, exchanges, and infrastructure projects, the event is a powerful platform for partnerships, investment, and career opportunities. 4️⃣Expanded program. In addition to the main forum, expect themed meetups, yacht tours, and exclusive evening events. 5️⃣Atmospheric AfterParty. As tradition goes, the organizers will bring in top international performers — the lineup will be announced closer to the date. 🎟Get your ticket with a 10% discount here using promo code TONEVENTS 🚬See you in Dubai! #BlockchainLife2025#Dubai#CryptoConference#Web3#CryptoNews

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Crypto News & Web3 Events | TON Ecosystem

@tonevents_en · Post #1670 · 08.07.2025 г., 06:15

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Blockchain Life 2025, Dubai | October 28–29 The 15th anniversary edition of Blockchain Life is set to become the largest crypto event of the year for those building careers and businesses in the Web3 space. With over 15,000 attendees expected, the forum will feature three content stages and a vibrant open-air program. Five reasons to get this on your schedule.: 1️⃣Positioning for the next market phase. Industry experts will share growth scenarios and actionable steps to help you make the most of the upcoming cycle. 2️⃣First-hand tech trends. Industry leaders will present innovations that could go mainstream within months. Simultaneous translation into Russian will be available. 3️⃣Global networking. With representatives from funds, exchanges, and infrastructure projects, the event is a powerful platform for partnerships, investment, and career opportunities. 4️⃣Expanded program. In addition to the main forum, expect themed meetups, yacht tours, and exclusive evening events. 5️⃣Atmospheric AfterParty. As tradition goes, the organizers will bring in top international performers — the lineup will be announced closer to the date. 🎟Get your ticket with a 10% discount here using promo code TONEVENTS 🚬See you in Dubai! #BlockchainLife2025#Dubai#CryptoConference#Web3#CryptoNews

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#blockchainlife2025#dubai#cryptoconference#web3#cryptonews