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: #us30trading
@forexsignalstrialgroup · Post #18153 · 17.03.2026 г., 11:12
Live Indices News Today – US30, NAS100, NASDAQ & GER40 | March 17, 2026 https://www.fxpremiere.com/live-indices-news-today-us30-nas100-nasdaq-ger40-march-17-2026/#US30#us30trading#us30signals#NAS100
@forexsignalstrialgroup · Post #17865 · 12.02.2026 г., 08:41
Live Indices News Today — US30, NAS100, NASDAQ & GER40 12 February 2026 https://www.fxpremiere.com/live-indices-news-today-us30-nas100-nasdaq-ger40-12-february-2026/#US30#us30signals#us30trading#NAS100 Make Money Online - FxPremiere Group
@forexsignalstrialgroup · Post #18055 · 03.03.2026 г., 10:55
📊 Viral Indices News Today – Monday, March 2, 2026 https://www.fxpremiere.com/%f0%9f%93%8a-viral-indices-news-today-monday-march-2-2026/#indices#US30#us30signals#us30trading
@forexsignalstrialgroup · Post #18100 · 10.03.2026 г., 08:40
Indices News Today – US30 & Nasdaq News 10th March 2026 https://www.fxpremiere.com/indices-news-today-us30-nasdaq-news-10th-march-2026/#US30#us30signals#us30trading#us30trader#NAS100
@forexsignalstrialgroup · Post #17803 · 05.02.2026 г., 11:45
Live Indices USA News Today — US30, NAS100, NASDAQ & GER40 (5 February 2026) https://www.fxpremiere.com/live-indices-usa-news-today-us30-nas100-nasdaq-ger40-5-february-2026/#US30#us30signals#us30trader#us30trading#NAS100
@forexsignalstrialgroup · Post #17638 · 27.01.2026 г., 09:46
Live Indices News Today — Global Stock Index Market Update 27th Jan, 2026 https://www.fxpremiere.com/live-indices-news-today-global-stock-index-market-update-27th-jan-2026/#us30signals#us30trading#us30trader#US30#NAS100
@forexsignalstrialgroup · Post #18130 · 15.03.2026 г., 07:14
Week Ahead Indices Forecast – Starting 16 March 2026 https://www.fxpremiere.com/week-ahead-indices-forecast-starting-16-march-2026/#NAS100#US30#us30signals#us30trading#NASDAQ Make Money Online - FxPremiere Group FxPremiere Group
@forexsignalstrialgroup · Post #17786 · 04.02.2026 г., 09:18
Live Indices USA News Today — US30, NASDAQ, NAS100 & GER40 (4 February 2026) https://www.fxpremiere.com/live-indices-usa-news-today-us30-nasdaq-nas100-ger40-4-february-2026/#forex#US30#us30signals#us30trader#us30trading#NAS100
@forexsignalstrialgroup · Post #17812 · 06.02.2026 г., 09:28
Live Indices USA News Today — US30, NAS100, NASDAQ & GER40 (6 February 2026) https://www.fxpremiere.com/live-indices-usa-news-today-us30-nas100-nasdaq-ger40-6-february-2026/#indices#US30#us30signals#us30trader#us30trading#NAS100 Make Money Online - FxPremiere Group
@forexsignalstrialgroup · Post #17706 · 30.01.2026 г., 09:35
Live Indices Signals News Today — US30, NAS100, NASDAQ & GER40 30th Jan, 2026 https://www.fxpremiere.com/live-indices-signals-news-today-us30-nas100-nasdaq-ger40-30th-jan-2026/#indices#NAS100#NASDAQ#US30#us30signals#us30trading
@forexsignalstrialgroup · Post #17769 · 03.02.2026 г., 08:54
Live Indices USA News Today — US30, NASDAQ, NAS100 & GER40 (3 February 2026) https://www.fxpremiere.com/live-indices-usa-news-today-us30-nasdaq-nas100-ger40-3-february-2026/#US30#us30signals#us30trader#us30trading#investing#finance
@forexsignalstrialgroup · Post #18044 · 02.03.2026 г., 09:21
Indices News Forecast Today: US30, NAS100, NASDAQ, GER40 — Monday 2 March 2026 https://www.fxpremiere.com/indices-news-forecast-today-us30-nas100-nasdaq-ger40-monday-2-march-2026/#indices#US30#us30signals#us30trading#us30trader#money#finance