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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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🏆 Premium, NFT, Tokens

@giiveaways · Post #2840 · 22.08.2024 г., 20:07

🪙Big news coming this Friday! Get ready to find out the official TGE date for MemeFi Stay tuned for the announcement! 👉Check out the tweet on X 🔔Subscribe👉Join MemeFi ⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️ #MemeFi#TGE#CryptoUpdate

Crypto Price

@cryptodailyprice · Post #4765 · 30.10.2025 г., 12:54

Crypto Market Update – Today • BTC: ~$108K • ETH: ~$3.8K • SOL: ~$187 • TON: ~$2.98 With Bitcoin holding firm above the six-figure mark, Ethereum steady, Solana making moves, and Toncoin continuing as a notable altcoin — these are the major ones to keep on your radar. 🔍 Note: Prices update rapidly. Always verify live data and use proper risk management. #crypto#bitcoin#ethereum#solana#toncoin#cryptoupdate

SingSing Announcement

@singsingchannel · Post #755 · 08.08.2024 г., 10:18

🌟 Exciting news! SingSing Mini App has launched Version 2! 🚀 Enjoy these amazing new feature: 🚨Claim RUBY: absolutely gas-free! 🎉 NO FEES, JUST RUBY! ⚠️ Remember, you only need to connect your wallet when minting tokens on-chain and you will soon be able to use RUBY in various games and projects within the SingSing ecosystem. Also, a friendly reminder: Ruby token halving starts at 14:00 UTC. ⏰ Don't miss out on these upgrades and make the most of your SingSing experience! #SingSingClub#RubyToken#CryptoUpdate

Crypto GALAXY

@crypto_galaxy_signals · Post #159 · 14.01.2024 г., 02:31

🌐Major News: BlackRock Grabs 11,500 #BTC Amid Market Dip. BlackRock acquires a substantial 11,500 Bitcoin during the recent market dip after launching its spot Bitcoin ETF. This acquisition is noteworthy, as it accounts for approximately 13 days' worth of #Bitcoin production, surpassing the daily issuance of 900 BTC. #CryptoUpdate#BlackRock#BitcoinPurchase#CryptoSignals - Crypto GALAXY

SingSing Announcement

@singsingchannel · Post #756 · 08.08.2024 г., 12:00

🚨 SingSing Mini App Version 2 Update! 🚨 Here's what's new: The RUBY in the "RUBY Balance" section is now off-chain RUBY, which you can claim completely gas-free! 🎉 1️⃣When you click the "Check Mission" button below the RUBY Balance Section, you'll see a "Mint" button. Hit "Mint" to convert your off-chain RUBY into on-chain RUBY. 🔄 2️⃣Scroll down to your Token List. The RUBY displayed here is your on-chain RUBY balance. After minting, your RUBY from the RUBY Balance section will move to this Token List balance. 💎 3️⃣With this new version, you can earn more RUBY with lower costs. Make the most of it and start stacking up RUBY for upcoming events with SingSing and our partners! 🚀 #SingSingClub#RUBYToken#CryptoUpdate#Version2

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😀 😀 😀 😀 😀 😀 😀 📢 今日加密快讯来啦!速览币圈动态,掌握市场先机!不要错过! #Magic88#CryptoNews#区块链#加密货币#比特币#以太坊#币圈资讯#Web3#DeFi#NFT#加密快讯#数字货币#CryptoUpdate#CryptoDaily#BlockchainNews 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🌟官网链接: ✅magic88.game 👈 ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ ❤️ 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🖤 🌐 Telegram 🌐Discord 🌐Facebook 🌐Twitter X 🌐Instagram 🌐Tiktok