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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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SLEX NEWS

@slex_io · Post #69 · 19.07.2023 г., 12:32

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🚀Are you ready to elevate into a crypto trading game?🤖 SLEX will bring an array of bots designed to supercharge your trading strategies and maximize your profits. Let us introduce to you the different types of SLEX trading bots: 1️⃣ Grid Bot: This intelligent bot follows a buy-low, sell-high approach by strategically placing orders at predefined price intervals 🌊📈📉 2️⃣ Arbitrage Bot: Say hello to the Arbitrage Bot, which hunts for pricing inefficiencies and swiftly executes trades to exploit them 💸💱 3️⃣ DCA Bot: The DCA Bot allows you to gradually build your crypto position over time by spreading out your orders at regular intervals📉🔄📈 4️⃣ AI Bot: Experience the future of trading with our AI Bot, which executes trades, identifies patterns, and develops robust trading strategies 🤖📊 👉Open the window to the future with the prospects of SLEX trading bots: SLEX.io/registration #SLEX#TradingBots#CryptoTrading#AutomatedTrading Email | Telegram | Reddit | Facebook | Instagram | Medium | Linkedin | Twitter

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SLEX NEWS

@slex_io · Post #73 · 01.08.2023 г., 13:32

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🚀 Hello, SLEXians! 🤖As you already know SLEX platform will launch an Automatic Trading Feature along with AI-Powered Trading Bots! 💻Trading around the clock, analyzing market trends, executing trades, and even learning from market shifts – that's what our Automatic Trading Feature ensures. 🤔But we're curious... What's your trading style? Are you ready to use Trading Bots and AI? Or do you prefer a hands-on approach to navigating the crypto world? 🌊 Jump into the comments and let us know! 🗣️ We're excited to hear how you plan to use (or not use) these advanced features on the SLEX platform! 💬👥 #SLEX#CryptoTrading#AutomatedTrading#AI#TradingBots Email | Telegram | Reddit | Facebook | Instagram | Medium | Linkedin | Twitter

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Crypto M - Crypto News

@CryptoM · Post #64525 · 09.04.2026 г., 06:06

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🚀 Crypto Sector Performance: MVB Leads Gains, Moltbook & OpenClaw Theme Declines The cryptocurrency market witnessed varied sector performances recently, with MVB emerging as the top rising sector, recording a 38.54% increase. According to NS3.AI, the Moltbook & OpenClaw Theme sector experienced the most significant decline, falling by 18.56%. Additionally, Trading Bots saw a notable rise of 30.41%, while Solana Token-2022 decreased by 8.27%. These fluctuations highlight the dynamic nature of the crypto market, with sectors experiencing both gains and losses. #Crypto#CryptocurrencyMarket#MVB#Moltbook#OpenClaw#TradingBots#Solana#OPN

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