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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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The Kingfisher - Bitcoin & Crypto liquidations signals and analytics

@thekingfisher_btc · Post #3880 · 13.02.2025 г., 11:23

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🚨 $ETH Liquidation Map Analysis 🚨 1️⃣ Main Liquidation Zones: *⬇️ Longs: Big cluster around 2000-2400. Ouch! *⬆️ Shorts: Noticeable stacks building up starting from 2800 up to 3200 2️⃣ Key Liquidation Levels: * 2000: Major Long liquidation zone🤯 * 3000-3200: Accumulation of short liquidations 🤔 3️⃣ Imbalance: *More significant Long liquidations below current price vs. shorts above. Bearish signal?🐻 4️⃣ Potential Price Moves: * Price could drop to grab liquidity at 2000-2400 before any potential bounce. * If price goes up, it could trigger a cascade of short liquidations towards 3000-3200🚀 5️⃣ Trader Takeaways: * Avoid placing stops near 2000, potential for stop hunts! 🚫 * Watch price action around 3000-3200 for breakout/reversal signals.👀 * Consider front-running potential moves near major liquidation zones. 🎯 #ETH#Crypto#Trading#Liquidation#Kingfisher

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Google Facts™ [ ️@googlefactss🌎]

@googlefactss · Post #40874 · 29.03.2026 г., 14:01

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Kingfishers are small, vibrant birds famous for their impressive fishing skills. With sharp, pointed beaks, they catch fish by diving into the water from a perch or while hovering. These birds are often found near rivers, lakes, and coastal areas, where they hunt for food. They have excellent vision, helping them spot fish from a distance. Kingfishers are also known for their bright, colorful plumage, which can include shades of blue, green, and orange, making them easy to recognize. While some species of kingfishers live in tropical areas, others can be found in temperate zones. They are solitary birds, usually perched alone while hunting, and their diet mainly consists of fish, but they also eat insects and small amphibians. Kingfishers play a crucial role in their ecosystems by controlling fish populations and helping to maintain healthy water environments. 🦜💧🎯 [Read more] @googlefactss #Kingfisher#Birds#Nature#Wildlife#Fishing#Conservation

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