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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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Пронајдени 6 слични објави

Пребарај: #ltcusdt

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GG-Shøt. Indicator & Signals

@doublegtrading · Post #7769 · 24.08.2025 г., 19:10

📩#LTCUSDT 1h | Mid-Term 📉Long Entry Zone: 123.69-117.94 🎯 - Strategy Accuracy: 93.29% Last 5 signals: 100.0% Last 10 signals: 100.0% Last 20 signals: 100.0% ⏳ - Signal details: Target 1: 125.27 Target 2: 126.86 Target 3: 128.44 Target 4: 133.19 _____ 🧲Trend-Line: 117.94 ❌Stop-Loss: 116.44 💡After reaching the first target you can put the rest of the position to breakeven

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Ai Crypto Signals

@blombardsignal · Post #446 · 25.10.2024 г., 17:00

#LTCUSDT has broken out of a Descending Channel, supported by the $60.00 level. However, for this rally to strengthen, it needs to clear the $75.00-$80.00 resistance zone, which was previously support. A successful breakout here could lead to a stronger push toward the next major resistance. --- #LTCUSDT пробил нисходящий канал, опираясь на поддержку на уровне $60.00. Однако для усиления ралли необходимо преодолеть зону сопротивления $75.00-$80.00, которая ранее служила поддержкой. Успешный пробой этого уровня может привести к более сильному росту к следующему важному сопротивлению. --- #LTCUSDT از کانال نزولی خارج شده و با حمایت قوی در سطح $60.00 پشتیبانی شده است. اما برای تقویت این صعود، باید از محدوده مقاومت $75.00-$80.00 که قبلاً حمایت بوده، عبور کند. شکست موفقیت‌آمیز در این سطح می‌تواند منجر به فشار قوی‌تری به سمت مقاومت بعدی شود.

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Haydar Sabiev | Crypto Investor

@haydarcrypto · Post #25 · 23.10.2023 г., 16:34

Signal for a futures trade #LTCUSDT.P 📌 Logged in to LONG Entry: ±$65.85 Take profit: $76; $90; $100 Stop loss: $59.5 On the daily chart, the price of the coin is preparing to exit consolidation. It is also possible to develop a double bottom pattern. It is most likely that alts will catch up with Bitcoin in their dynamics.

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Mexc Crypto Signals Pumps Trading Kucoin

@mexc_signals_pumps_trading · Post #1981 · 26.11.2025 г., 22:05

#LTCUSDT UPDATE: #LTC is now currently trading around $86.46. It has already broken out of the Symmetrical triangle on the 4hr time frame. So, the possible scenarios are: if the price pumps from here and breaks above the resistance zone, then we can see bullish momentum, and the price can go towards $91-$93. Otherwise, if the price dumps from here and trades inside the triangle again, then the breakout will be considered a fakeout. Keep an eye on it and stay tuned with us for further updates

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Elf Crypto VIP

@elfcryptovip · Post #12149 · 14.10.2025 г., 13:05

🚨Candlestick Patterns Detected: ⭐Shooting Star on #ADAUSDT (4h) ⭐Shooting Star on #ETHUSDT (4h) ⭐Shooting Star on #NEARUSDT (4h) ⭐Shooting Star on #XRPUSDT (4h) ⭐Shooting Star on #FORMUSDT (4h) ⭐Shooting Star on #LTCUSDT (4h) ==================== 🔨Hammer on #CAKEUSDT (4h) 🔨Hammer on #SUIUSDT (4h) 🔨Hammer on #LINKUSDT (4h) 🔨Hammer on #WLFIUSDT (4h) 🔨Hammer on #ASTERUSDT (4h) 🔨Hammer on #DOGEUSDT (4h) 🔨Hammer on #ENAUSDT (4h) 🔨Hammer on #PUMPUSDT (4h) 🔨Hammer on #ZECUSDT (4h) 🔨Hammer on #SOLUSDT (4h) ==================== 🚀Marubozu Bullish on #TAOUSDT (4h) ====================

Elf Crypto VIP

@elfcryptovip · Post #12282 · 11.11.2025 г., 08:54

🚨Candlestick Patterns Detected: ⚠️Marubozu Bearish#BNBUSDT ⚠️Marubozu Bearish#BTCUSDT ⚠️Marubozu Bearish#ETHUSDT ⚠️Marubozu Bearish#NEARUSDT ⚠️Marubozu Bearish#XRPUSDT ⚠️Marubozu Bearish#TAOUSDT ⚠️Marubozu Bearish#FILUSDT ⚠️Marubozu Bearish#XPLUSDT ⚠️Marubozu Bearish#TRUMPUSDT ⚠️Marubozu Bearish#UNIUSDT ⚠️Marubozu Bearish#WLFIUSDT ⚠️Marubozu Bearish#DOGEUSDT ⚠️Marubozu Bearish#VIRTUALUSDT ⚠️Marubozu Bearish#PUMPUSDT ⚠️Marubozu Bearish#ZECUSDT ⚠️Marubozu Bearish#SOLUSDT ⚠️Marubozu Bearish#ZKUSDT ⚠️Marubozu Bearish#LTCUSDT