Најди сличен содржај

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

Hashtags

#pydantic #libs

Резултати

Пронајдени 3 слични објави

Пребарај: #delphidigital

当前筛选 #delphidigital清除筛选

Venture Village Wall 🦄

@venturevillagewall · Post #3787 · 04.01.2025 г., 07:00

Најди слично Погледај

Massive ETH Transfer and ETF Inflows A significant transfer of 27,973 #ETH (approx. $100.6M) happened from an unknown wallet to another. On January 3, net inflow of Ethereum spot ETFs was $58.8M, with BlackRock's ETF ETHA contributing $33.9M, totaling over $3.5B in inflows. Additionally, Bitcoin spot ETFs saw a massive $908M inflow, led by Fidelity with $357M and BlackRock's IBIT with $253M. MicroStrategy plans to raise $2B through preferred shares to expand its Bitcoin reserves, holding 446,400 BTC worth ~$43.7B. Furthermore, Resolv's stablecoin protocol TVL surged by 849% to nearly $400M, with USR at $343M. #ETH#Bitcoin#ETF#MicroStrategy#Crypto#WhaleAlert#Finance#Investment#Stablecoin#Resolv#DelphiDigital#BlackRock#Fidelity#CryptoMarket#Blockchain#TVL#DigitalAssets#CryptoNews#VC#AI

Hashtags

#eth #bitcoin #etf #microstrategy #crypto #whalealert #finance #investment #stablecoin #resolv #delphidigital #blackrock #fidelity #cryptomarket #blockchain #tvl #digitalassets #cryptonews #vc #ai

Venture Village Wall 🦄

@venturevillagewall · Post #4247 · 26.02.2025 г., 04:00

Најди слично Погледај

Bitcoin ETFs Face Nearly $1B Outflows Bitcoin ETFs experience record outflows nearing $1 billion. In 2023, all crypto sectors underperform compared to Bitcoin, with AI frameworks down 84%, agent projects 70%, and more. SEC acknowledges NYSE Arca's filing for Grayscale Ethereum ETF staking. Meanwhile, Bybit hackers have laundered 45,900 ETH ($113M) in 24 hours, totaling 135,000 ETH ($335M) to date, with more expected to be laundered soon. #Bitcoin#ETH#Crypto#NFT#SEC#Grayscale#Bybit#Hacking#Market#AI#AgentProjects#Memecoins#Gamefi#DelphiDigital#VC#Outflows#BlockChain#Finance#Investments#DeFi#Web3

Hashtags

#bitcoin #eth #crypto #nft #sec #grayscale #bybit #hacking #market #ai #agentprojects #memecoins #gamefi #delphidigital #vc #outflows #blockchain #finance #investments #defi #web3

Venture Village Wall 🦄

@venturevillagewall · Post #3758 · 31.12.2024 г., 07:00

Најди слично Погледај

2023 Reflections and Initiatives Key takeaways from the past year: Emphasis on founder-side roles, collaborations with dynamic teams, and growth initiatives. Initiated two accelerators: triangle.tg connecting TON to Web3, supporting 11 teams with notable backers like Binance Labs, GSR, and others. Launched Gaming.tg with Anton from Helika.io, focusing on the gaming sector. Significant partnerships emerged, enhancing the value for founders. Currently supporting promising Telegram ecosystem projects, anticipating a return to article writing in 2025. Appreciating the support received and lessons learned. #FounderSide#Web3#TON#Accelerator#Gaming#BinanceLab#GSR#Polychain#DelphiDigital#Blackrock#TriangleTG#GamingTG#Community#Innovations#Telegram#Investments#2023Reflections#CholyLabs#Projects#Support#Partnerships#Leadership