TGINSIGHT SIMILAR POSTS
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
Пребарај: #cryptotwitter
@digitalgentop · Post #242 · 06.06.2024 г., 10:59
🔖McHenry urges Senate to pass FIT21 crypto bill before election The United States House’s widely positive vote on the crypto-regulating FIT21 bill should be “a wake-up call” to the Senate to quickly pass it, says Rep. Patrick McHenry 💬 #Cryptotrader #Cryptotwitter #Cryptoinvestment #Cryptocurrencyexchange
@digitalgentop · Post #218 · 01.06.2024 г., 13:01
⚡️Vanguard Files Specialized Fund With Special Mention of Digital Currency #Cryptotrader #Cryptotwitter #Cryptoinvestment #Cryptocurrencyexchange
@digitalgentop · Post #211 · 31.05.2024 г., 10:00
☄️Solana Vote Approves 100% Priority Fee Allocation to Validators #Cryptotrader #Cryptotwitter #Cryptoinvestment #Cryptocurrencyexchange #BlockchainTechnology
@venturevillagewall · Post #3669 · 21.12.2024 г., 13:51
USAcoin Proposal by Peter Schiff Peter Schiff suggests that instead of building a strategic reserve in BTC, the U.S. could save money by launching a new cryptocurrency called USAcoin, which would have a capped supply of 21 million coins, utilizing updated blockchain technology for payment efficiency. He emphasizes the potential wealth this could generate and encourages HODL. 🔗Read more here🔗Join Crypto Twitter #USAcoin#Cryptocurrency#BTC#Blockchain#PaymentSystems#Investment#WealthBuilding#HODL#Crypto#Finance#PeterSchiff#CryptoTwitter#DigitalCurrency
@venturevillagewall · Post #3504 · 19.12.2024 г., 14:22
BTC Buying Surge Amid Drops Despite a slight drop in Bitcoin prices, major players are buying in: 🔵 Marathon purchased BTC worth $1.53 billion. 🔵 BlackRock acquired $359 million in BTC. 🔵 Hut8 invested $100 million. 🔵 Michael Saylor likely preparing to buy another $3 billion. 🔥 States are also secretly accumulating Bitcoin. #Bitcoin#Marathon#BlackRock#Hut8#MichaelSaylor#Crypto#Investment#Market#Trading#Assets#Finance#DigitalCurrency#Blockchain#CryptoTwitter#BTC#Bullish#Wealth#Economy#Currency
@venturevillagewall · Post #3842 · 10.01.2025 г., 22:00
Bitcoin Mining Ban and Market Resilience In 2021, China's ban on Bitcoin mining caused market panic, leading to a significant dip. However, this event has less relevance now. Bitcoin continues to show resilience despite fluctuations. Data from PumpFun reveals that only 0.4% of meme coin traders made over $10,000, while 60% ended with losses. Most users either broke even or earned little. For insights on meme coin trading, check this post. #Bitcoin#Crypto#Trading#MemeCoins#MarketTrends#Mining#Investing#Blockchain#Finance#PumpFun#Statistics#MarketDip#Profit#Losses#Trader#Wealth#InvestmentStrategy#CryptoTwitter
@venturevillagewall · Post #3857 · 12.01.2025 г., 16:00
FTX Announces Preliminary Fund Distribution Schedule 🔵 FTX reveals a preliminary payment distribution schedule for creditors. 🔵 Claims under $50k total $1.2 billion. 🔴 By January 20: Preliminary claims must be met. 🔴February 25 - March 4: Expected period for fund distribution begins. 🤔 Will this bring additional liquidity to the market? Read more #FTX#Crypto#Market#Liquidity#Payments#Claims#Finance#Investments#Bitcoin#News#Updates#Distribution#Schedule#CryptoTwitter#Investors#Creditors#Funds#Return#January#February#March