TGINSIGHT SIMILAR POSTS
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: #indices
@forexsignalstrialgroup · Post #18549 · 27.04.2026 г., 06:55
Signals Forecast for Indice News Signals Starting 27th April 2026: US30, NAS100, S&P 500, FOMC Week, AI Earnings and Oil Risk https://www.fxpremiere.com/signals-forecast-for-indice-news-signals-starting-27th-april-2026-us30-nas100-sp-500-fomc-week-ai-earnings-and-oil-risk/#indices
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@forexsignalstrialgroup · Post #18529 · 23.04.2026 г., 08:00
Signals Forecast for Indice News Signals Starting 23rd April 2026: US30, NAS100, S&P 500 Outlook, PMI Risk, and Live Trading Scenarios https://www.fxpremiere.com/signals-forecast-for-indice-news-signals-starting-23rd-april-2026-us30-nas100-sp-500-outlook-pmi-risk-and-live-trading-scenarios/#indices
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@forexsignalstrialgroup · Post #18457 · 17.04.2026 г., 08:13
Indice Signals News Forecast Starting 17th April 2026 https://www.fxpremiere.com/indice-signals-news-forecast-starting-17th-april-2026/#indices Make Money Online - FxPremiere Group
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@forexsignalstrialgroup · Post #18347 · 07.04.2026 г., 07:47
Indices Nasdaq US30 Signals Live News Today – 7th April 2026 https://www.fxpremiere.com/indices-nasdaq-us30-signals-live-news-today-7th-april-2026/#indices#us30signals
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@forexsignalstrialgroup · Post #18519 · 22.04.2026 г., 06:58
Signals Forecast for Indices News Starting 22nd April 2026: US30, NAS100, S&P 500 Outlook, U.S. Macro Risks, and Live Trading Scenarios https://www.fxpremiere.com/signals-forecast-for-indices-news-starting-22nd-april-2026-us30-nas100-sp-500-outlook-u-s-macro-risks-and-live-trading-scenarios/#indices#US30#us30signals
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@forexsignalstrialgroup · Post #18428 · 15.04.2026 г., 07:36
Indice Signals Forecast for US30 NAS100 NASDAQ GER40 Starting 15th April 2026 https://www.fxpremiere.com/indice-signals-forecast-for-us30-nas100-nasdaq-ger40-starting-15th-april-2026/#US30#NAS100#indices Make Money Online - FxPremiere Group FxPremiere Group FxPremiere Telegram Alerts Nasdaq
@forexsignalstrialgroup · Post #18326 · 03.04.2026 г., 08:26
Indices Nasdaq US30 Signals Live News Today – 3rd April 2026 https://www.fxpremiere.com/indices-nasdaq-us30-signals-live-news-today-3rd-april-2026/#indices#US30#NAS100
@forexsignalstrialgroup · Post #17939 · 19.02.2026 г., 12:23
Live Indices News Today — US30, NAS100, NASDAQ & GER40 February 19, 2026 https://www.fxpremiere.com/live-indices-news-today-us30-nas100-nasdaq-ger40-february-19-2026/#indices#US30#NAS100 FxPremiere Telegram Alerts
@forexsignalstrialgroup · Post #17897 · 16.02.2026 г., 11:06
Live Indices News Today — US30, NAS100, GER40 & NASDAQ (February 16, 2026) https://www.fxpremiere.com/live-indices-news-today-us30-nas100-ger40-nasdaq-february-16-2026/#US30#NAS100#indices
@forexsignalstrialgroup · Post #18632 · 09.05.2026 г., 08:38
Signals Forecast for FX, Gold, Indices and Crypto News Signals Starting 11th–15th May 2026: USD, XAU/USD, US30, NAS100, Bitcoin and Ethereum Weekly Outlook https://www.fxpremiere.com/signals-forecast-for-fx-gold-indices-and-crypto-news-signals-starting-11th-15th-may-2026-usd-xau-usd-us30-nas100-bitcoin-and-ethereum-weekly-outlook/#forextrading#XAUUSD#indices#crypto
@forexsignalstrialgroup · Post #18439 · 16.04.2026 г., 06:31
Indice Signals News Forecast for US30 NASDAQ NAS100 GER40 Starting 16th April 2026 https://www.fxpremiere.com/indice-signals-news-forecast-for-us30-nasdaq-nas100-ger40-starting-16th-april-2026/#indices#US30#us30signals#NAS100 Make Money Online - FxPremiere Group
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@forexsignalstrialgroup · Post #17880 · 13.02.2026 г., 10:10
Live Indices News — US30, NAS100, GER40 & Global Markets February 13, 2026 https://www.fxpremiere.com/live-indices-news-us30-nas100-ger40-global-markets-february-13-2026/#indices#US30#us30signals#NAS100 FxPremiere Group Nasdaq Financial Times
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