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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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Venture Village Wall 🦄

@venturevillagewall · Post #4282 · 02.03.2025 г., 01:00

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Bitcoin: Panic Buying Amid Market Shakeup Panic reactions in the market are evident as Bitcoin fluctuates. Key developments in the TON ecosystem include: - TVM Ventures launching a $100M fund for TON growth 🔗 - Updates from TON Core for Dec 2024 - Jan 2025 🔗 - Steve Yun discusses DeFi’s future in Telegram on CNBC 🔗 - First mid-core web3 game launched on TON 🔗 - Support program for Mini Apps initiated 🔗 - Innovations from Notcoin team highlighted 🔗 - LayerZero’s new USDT bridge enhances TON’s cross-chain capabilities 🔗 - Key investments in DeFi and SocialFi detailed by TVM Ventures 🔗 - TON’s ecosystem expands beyond major project monopolies 🔗 - TRM Labs introduces a comprehensive blockchain analysis tool for TON 🔗 - The domain believers.ton is permanently lost 🔗 #Bitcoin#DeFi#TON#Crypto#Web3#Investment#LayerZero#Blockchain#MiniApps#PanicBuying#TVMVentures#Notcoin#TRMLabs

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Crypto M - Crypto News

@CryptoM · Post #64673 · 09.04.2026 г., 13:26

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🚀 Drift Faces $285 Million Exploit Due to Social Engineering Tactics Drift experienced a significant exploit amounting to $285 million, attributed to suspected North Korean operatives employing in-person social engineering against its contributors. According to NS3.AI, the group targeted contributors at several major industry conferences over a six-month period leading up to the exploit. TRM Labs identified this incident as the largest DeFi hack of 2026 to date and the second-largest exploit in Solana's history. The attacker reportedly utilized CarbonVote Token to secure collateral acceptance, increase withdrawal limits, and extract assets, including USDC. #Drift#exploit#socialengineering#NorthKorea#DeFi#Solana#CarbonVoteToken#TRMLabs#USDC#cybersecurity

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Crypto M - Crypto News

@CryptoM · Post #65273 · 12.04.2026 г., 13:10

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🚀 Iran Reopens Strait of Hormuz with Bitcoin Toll Amid Ceasefire Iran has reopened the Strait of Hormuz under a two-week ceasefire, requiring tankers to pay a $1-per-barrel toll in Bitcoin for passage. According to NS3.AI, Hamid Hosseini stated that the system now processes 10 to 15 vessels daily, a significant decrease from the 135 vessels before the conflict. TRM Labs reported that since mid-March, Iran's military has collected up to $2 million per ship in Bitcoin, Chinese yuan, and potentially USDT. #Iran#StraitOfHormuz#BitcoinToll#Ceasefire#Tankers#NS3AI#Hosseini#TRMLabs#Military#Crypto#USDT#ChineseYuan#Shipping#Blockchain#IranEconomy#BTC

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#iran #straitofhormuz #bitcointoll #ceasefire #tankers #ns3ai #hosseini #trmlabs #military #crypto #usdt #chineseyuan #shipping #blockchain #iraneconomy #btc