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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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ETHIOPIA 🇪🇹 | የኢትዮጵያ ድምጽ

@ethiopia · Post #31 · 18.06.2025 г., 16:03

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🌅 **YIRGACHEFFE: THE CROWN JEWEL OF ETHIOPIAN COFFEE** ☕👑 *Where Giants Fight for Gold* High in the misty mountains of southern Ethiopia, at 2,000+ meters above sea level, lies the legendary Yirgacheffe region - the birthplace of coffee that commands $30-80 per pound in premium markets worldwide. commands $30-80 per pound in premium markets worldwide🏆 **YIRGACHEFFE: THE CRO- Features Yirgacheffe as their flagship single-origin 💎👑 *Where Giants Fight - Built their reputation on Ethiopian beans ⚡N COFFEE** ☕👑 *Wher- Direct partnerships with Yirgacheffe cooperatives 🌟* ☕👑 *Where Giants- Sources exclusively from 4 select farms PIAN COFFEE** ☕👑 *Where Giants Figh•� **YIRGACHEFF 1,700-2,200m (higher than most wine regions) •COFFEE** ☕👑 Perfect balance of rain and sunshine •HIOPIAN CO Volcanic, mineral-rich earth •EL OF ETHIOPIAN Traditional washed method perfected over centuries E** ☕👑 *Where Giant• Yirgacheffe beans sell forJEWEL OF ETHIOPIAN COFover commercial coffee • Annual production: OnlyOFFEE** ☕👑 *Wheglobally • Global demand:WN JEWEL OF ETHIOPIAN CO This isn't just coffee - it's liquid gold that turns morning rituals into luxury experiences. --- the misty mountaየኢትዮጵያ ቡና ዘውድ - ይርጋቸፌ፣ ከፍተኛ ዋጋ ያለው ልዩ ቡና #YirgacheffeCoffee#EthiopianCoffee#PremiumCoffee#SingleOrigin#CoffeeOrigin#SpecialtyCoffee#EthiopianHeritage#HighAltitudeCoffee#CoffeeTerror#LuxuryCoffee

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ETHIOPIA 🇪🇹 | የኢትዮጵያ ድምጽ

@ethiopia · Post #32 · 19.06.2025 г., 04:28

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🔥 **BLUE BOTTLE COFFEE: FROM OAKLAND TO ETHIOPIAN HIGHLANDS** ☕ *The $45 Million Ethiopian Journey* In 2002, James Freeman started roasting coffee in a tiny Oakland garage. Today, Blue Bottle commands $45+ per pound for Ethiopian single-origins in their 100+ locations worldwide. or Ethiopian single-origins in 🏔️**BLUE BOTTLE COFFEE: FROwith 12 Ethiopian cooperatives 💎LAND TO ETHIOPIAN HIG $45-65/lb for Yirgacheffe reserves ⚡ TO ETHIOPIAN HIGHL 50,000+ lbs of Ethiopian beans 🌟AND TO ETHIOPIAN HIGHLto micro-lots unavailable elsewhere D TO ETHIOPIAN HIGHLANDS** ☕ *The $45 Milli•� **BLUE BOTTLE COFFEE: Wine-like acidity, floral notes, tea-like body •N HIGHLANDS** ☕ *The $45 2,000m altitude, volcanic soil, hand-picking •IAN HIGHLANDS** ☕ *The "Coffee's third wave" pioneers •LAND TO ETHIOPIAN HIGH 89% retention rate for Reserve subscribers IOPIAN HIGHLANDS** ☕ • Ethiopian beans generateROM OAKLAND TO ETHIOPIANthan other origins • Reserve Ethiopian lotsHIOPIAN HIGHLANDS** ☕ *The $4• Average customer spendsFROM OAKLAND TO ETHvs $12 industry average From garage startup to $700M acquisition by Nestlé - Ethiopian coffee was their secret weapon for premium positioning. --- in a tiny Oaklaብሉ ቦትል ቡና፣ ከኢትዮጵያ ወደ ዓለም - የፕሪሚየም ቡና ታሪክ #BlueBottleCoffee#EthiopianCoffee#PremiumCoffee#CoffeeStory#SpecialtyCoffee#CoffeeRoaster#SingleOrigin#CoffeeBusiness#ThirdWaveCoffee#EthiopianBeans

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