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@WorldNews · Post #73557 · 23.03.2026 г., 21:34
US to pay almost $1bn to French energy company to kill wind project plan [Read FullArticle] @WorldNews#USNews#EnergyPolicy#WindPowerCancellation
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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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World News [Breaking News]
@WorldNews · Post #74473 · 30.04.2026 г., 20:29
Trump’s trade czar says U.S. wants to work with Canada on energy, critical minerals, sources say [Read FullArticle] @WorldNews#USCanadaTrade#EnergyPolicy#CriticalMinerals
Crypto M - Crypto News
@CryptoM · Post #64652 · 09.04.2026 г., 12:36
🚀 White House Predicts Gasoline Price Drop with Hormuz Strait Opening The White House National Economic Council Director, Kevin Hassett, has indicated that gasoline prices are expected to decrease swiftly once the Strait of Hormuz is reopened. According to Odaily, Hassett mentioned that discussions have been held with allies to ensure a stable supply of U.S. oil. Additionally, consultations regarding the purchase of oil and natural gas have been conducted with allied nations. #WhiteHouse#GasolinePrices#HormuzStrait#OilSupply#USEconomy#EnergyPolicy#NaturalGas#KevinHassett#GlobalTrade#OilMarket
Crypto M - Crypto News
@CryptoM · Post #65061 · 10.04.2026 г., 17:36
🚀 France Shifts Focus to Electric Power Amid Rising Oil Prices French Prime Minister Sebastien Lecornu announced a strategic shift in government policy, emphasizing investment in electric power over short-term fuel aid. Bloomberg posted on X that this decision comes in response to the recent surge in oil prices triggered by the conflict in Iran. Lecornu highlighted the importance of supporting households and businesses in transitioning to electric power as a sustainable solution to the energy crisis. The government aims to reduce dependency on fossil fuels and promote cleaner energy alternatives. This move is part of a broader effort to address the economic impact of rising oil prices and ensure long-term energy security for the nation. #France#ElectricPower#OilPrices#EnergyTransition#RenewableEnergy#EnergyPolicy#SustainableEnergy#FossilFuelReduction#EnergySecurity#EconomicImpact