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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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TONlines – News

@tonlines · Post #7625 · 27.11.2025 г., 09:27

⚡️MRKT League: Autumn Champions Announced #MRKT#traders The Autumn Open League on MRKT has concluded, with winners now available in the app. A total of 50 traders earned prizes, ranging from a Plush Pepe to a Heroic Helmet. The next tournament has started, with results to be announced on December 3. Source: link @tonlines

TONlines – News

@tonlines · Post #7575 · 21.11.2025 г., 19:05

MRKT: Prepare for the Next Trading Opportunity #MRKT#traders MRKT provides a new opportunity for traders to buy Stars at the best price and participate in the upcoming trading rush. Direct purchase through @mrktbank is available. Source: link @tonlines

TONlines – News

@tonlines · Post #7538 · 19.11.2025 г., 18:41

MRKT: Autumn Open League Concludes #MRKT#traders The Autumn Open League hosted by MRKT has concluded, celebrating top traders with prizes like Plush Pepe and Durov’s Cap. A new tournament is already underway, inviting more participants to join. Source: link @tonlines

ProtradeFx

@protradeforex · Post #9938 · 19.02.2026 г., 09:19

The @OrderOfMentors now have a YouTube channel, please subscribe and share your charts in the YouTube community group chat to help us attract other traders. Your help is needed to grow. https://youtu.be/Xi4qxpq-2GU?si=t7GfRMqfC93j0Fk8 #OOM#Traders#Jayfx

Venture Village Wall 🦄

@venturevillagewall · Post #3913 · 18.01.2025 г., 13:00

Bitcoin Predicted to Reach $200K by 2025 CryptoQuant analysts forecast Bitcoin may hit $200,000 by 2025. Driving factors include: ✔️ $520 billion institutional capital influx ✔️ Easing monetary policy and favorable crypto regulation ✔️ Historical price surges in the final year of four-year cycles. For more details, visit Forklog News. #Bitcoin#Crypto#Market#Analysis#Forecast#Investment#Institutional#Regulations#BullMarket#Trends#Finance#CryptoNews#Blockchain#Tech#Economy #2025 #Capital#Growth#QuantAnalysis#Traders#Volatility

Venture Village Wall 🦄

@venturevillagewall · Post #4338 · 08.03.2025 г., 10:00

Utah Establishes First Bitcoin Reserve 🔵 Utah becomes the first U.S. state to create a strategic Bitcoin reserve. This initiative aims to enhance regional economic stability and protect state assets from inflation and market fluctuations. Read more here. 🔴 In contrast, Russia remains hesitant to include Bitcoin in its National Wealth Fund, citing its volatility. Nevertheless, the Deputy Minister of Finance indicated a review of the strategy may occur if reserves reach a certain level, potentially incorporating higher-yield assets like crypto in the future. Read more here. ⭐️ Gemini cryptocurrency exchange confidentially filed for an IPO, partnering with Goldman Sachs and Citigroup, potentially eyeing a market entry in 2025. More details available here. #Bitcoin#Utah#Crypto#Russia#IPO#Gemini#Finance#Market#Investment#ETF#Volatility#Assets#Economy#Regulation#Wealth#Liquidity#Traders#CryptoExchanges#BNB#BSC#VC

Venture Village Wall 🦄

@venturevillagewall · Post #3760 · 31.12.2024 г., 13:00

XRP Market Insights and Predictions 📉 Current XRP Price: $2.16 with a $123B market cap. Trading volume: $2.21B. 📊Consolidation Phase: Support at $2.1, resistance at $2.5. RSI: 49.81 | Stochastic: 26.35 | CCI: -95.21. Mixed signals overall, MACD suggests bearish sentiment. 🔄Short-term Downtrend: Testing support at $2.115; resistance at $2.22 - $2.25. EMAs indicate sell signals for 10- and 20-periods. 📈Bullish/ Bearish Scenarios: Break above $2.25 targets $2.5; break below $2.1 targets $1.9. Traders should implement tight stop-losses. Full analysis details can be read here. #XRP#Crypto#MarketAnalysis#TradingStrategy#Investing#TechnicalAnalysis#PricePrediction#Bullish#Bearish#Support#Resistance#EMAs#MACD#RSI#Stochastic#CCI#Volume#Traders#Bulls#Bears#Consolidation