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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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@revheadcrypto · Post #439 · 05.09.2024 г., 07:03

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🚗✨Introducing the New Nissan Patrol & Armada!✨🚙 🌍 Available globally as the Patrol and in the USA as the Armada, these powerful SUVs are equipped with a robust 3.5L turbo V6 engine, delivering an impressive 425 HP and 700 Nm of torque! 💪🔧 (+7% power & +25% torque) paired with a smooth 9-speed automatic transmission. 📏 Built on the recently launched Infiniti QX80 platform, the Patrol has been slightly lengthened and widened while maintaining the same wheelbase. 🛠️ It now offers even more space for passengers, with an additional 145 mm in the third-row legroom, and a cargo capacity ranging from 578 to 2750 liters! 🧳📦 🌄 The all-wheel-drive system features a low range and optional rear differential lock for enhanced off-road capability. For the North American market, check out the rugged Armada Pro-4X variant, complete with air suspension, off-road bumpers, and all-terrain tires! 🌲🛤️ 💰 Prices have been announced only for the UAE, starting at approximately $65,000. Get ready for adventure with the new Nissan Patrol & Armada! 🚀🌟 #NissanPatrol#NissanArmada#SUV#OffRoad#AdventureAwaits#PowerfulPerformance#Auto

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@revheadcrypto · Post #629 · 08.11.2024 г., 09:31

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🚐✨Introducing the Luxurious Brabus Big Boy 1200 Motorhome!✨🚐 This stunning camper, priced at €1.26 million, measures an impressive 12 meters in length and is designed for a maximum of three residents. 🛏️👨‍👩‍👧 The Big Boy 1200 features several retractable modules that expand the living space during your stay, offering a spacious bedroom and a cozy living area that doubles as a dining room. 🛋️🍽️ In the bedroom, you'll find a full-size bed (160x200 cm), while an additional sleeping space for one person is cleverly located above the driver’s cabin. 💤🛌 Built on a robust three-axle Mercedes-Benz Actros chassis, this motorhome is powered by a 12.8-liter diesel engine that delivers an astonishing 530 hp and 2600 Nm of torque! 💪🚛 Get ready to travel in style and comfort! 🌍❤️ #Brabus#BigBoy1200#LuxuryMotorhome#VanLife#TravelInStyle#MercedesBenz#AdventureAwaits#Auto

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@revheadcrypto · Post #569 · 11.10.2024 г., 06:43

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🚗💨Introducing the Ford F-150 Raptor Shelby Baja Raptor!💥🔥 Get ready to unleash the power with an incredible 900-horsepower engine upgrade! 💪 The 3.5L V6 EcoBoost now roars at 550 hp, while the 5.2L V8 on the Raptor R delivers a staggering 730 hp with a new supercharger and custom exhaust! 🎉🔧 Key features include: ✨ Enhanced BDS suspension ✨ Massive 37-inch tires ✨ Custom hood with air intakes ✨ Heavy-duty bumpers and extra LED lights ✨ Robust cargo rack for the bed Starting at just $51,995 (excluding the base truck price), this beast is ready to dominate any terrain! 🌍🏞️ #FordF150#Raptor#ShelbyBajaRaptor#OffRoad#Power#TruckLife#AdventureAwaits#CarEnthusiast#Auto

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