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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
Пребарај: #restyling
@redfoxuz · Post #1835 · 28.09.2023 г., 06:03
@redfoxuz / #rebranding#restyling Facebook o'zini aydentikasini yangiladi Xabaringizbo'lsa 3-4 kun oldin facebook logosi yangilangani haqida xabarlar bo'lganedi, endi esa aydentikasi ham yangilandi Batafsil: https://design.facebook.com/stories/redefining-facebooks-brand-identity/
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@redfoxuz · Post #1721 · 24.05.2022 г., 04:26
@redfoxuz / #rebranding#restyling Instagram o'z brendini restayling qildi! Yangi shrift, gradient rangi yanada yorqinlashgan. Yangi shriftdan tashqari "wordmark" va dastur ikonkasi yangilangan Batafsil: https://about.instagram.com/brand Restayling haqida qanday fikrdasiz?
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@car_news · Post #1205 · 18.04.2025 г., 14:34
📰 New Mercedes-Benz G-Class has received a retroversion A total of 460 of these SUVs will be produced. 💪 The Mercedes G-Class 2025 lineup features an exclusive Stronger than the 1980s version inspired by the early Gelendwagen models. 🔎 The exterior differs due to black bumpers, underbody protection, orange turn signals, wheel rims and roof rack. The body colors are borrowed from the models of the 80s. The interior combines expensive Nappa leather and checkered fabric, and on the front panel there is a plate with the serial number and the inscription Stronger than the 1980s. 🐎 The models are offered with 3.0-liter turbo engines: G500 – 449 hp, G450 d – 367 hp. 💰 The price starts from $203,000. @CarsNews #Mercedes#restyling
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@car_news · Post #766 · 19.11.2024 г., 10:55
🚘 has unveiled a Phantom Goldfinger car with a hidden gold bar in the cabin 🎂 The sedan was created for the 60th anniversary of Goldfinger – a film about James Bond. In the film, a millionaire criminal smuggles gold. He smelts gold and makes it into parts for his Rolls-Royce Phantom. 🔎 The modern Phantom received a golden-black body paint, repeating the colour scheme of the car from the film, and many other references to the film. For example, the signature nose piece ‘Spirit of Ecstasy’ looks as if it was made of pure gold, which for disguise was covered with silver, partially erased. In fact, the opposite is true: the mascot was made of silver and plated with an uneven coating of 18-carat gold. @CarsNews #RollsRoyce#Bespoke#restyling
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