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: #houston
@escapehouston · Post #1854 · 13.05.2026 г., 19:43
Cheap Flights: Houston to/from San Francisco $221-$241 round-trip [July-December] (No Christmas) – American Airlines - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28812 #Houston
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@escapehouston · Post #1853 · 11.05.2026 г., 16:07
Cheap Flights: Houston to/from Medellin, Colombia $380-$499 round-trip [July-August] – JetBlue - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28809 #Houston
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@escapehouston · Post #1852 · 11.05.2026 г., 00:45
Cheap Flights: Houston to/from Nassau, Bahamas or Montego Bay, Jamaica $279-$324 round-trip [Aug-Sep / Sep-Oct] – JetBlue - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28806 #Houston
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@escapehouston · Post #1851 · 08.05.2026 г., 16:35
Cheap Flights: Houston to/from Nadi, Fiji $679-$764 round-trip [May-August] – Fiji Airways - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28802 #Houston
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@escapehouston · Post #1850 · 07.05.2026 г., 17:11
Nonstop Flights: Houston to/from Atlanta $56 round-trip [June-September] – Frontier - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28799 #Houston
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@escapehouston · Post #1849 · 05.05.2026 г., 23:47
Cheap Flights: Houston to/from Nassau, Bahamas $468-$473 round-trip [June] – American Airlines - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28796 #Houston
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@escapehouston · Post #1848 · 03.05.2026 г., 17:53
Nonstop Flights: Houston to/from Fort Lauderdale $169-$184 round-trip [May, Jun, Aug, Sep] (Mostly midweek) – United - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28791 #Houston
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@escapehouston · Post #1847 · 28.04.2026 г., 21:05
Cheap Flights: Houston to/from Maui-Kahului, Hawaii $388 round-trip [October-November] (No Thanksgiving) – American Airlines / United - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28787 #Houston
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@escapehouston · Post #1846 · 23.04.2026 г., 16:33
Nonstop Flights: Houston to/from Indianapolis $186-$234 round-trip [May-Jun, Aug-Sep] – Southwest - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28784 #Houston
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@escapehouston · Post #1845 · 21.04.2026 г., 20:07
Cheap Flights: Houston to/from Montego Bay $384 round-trip [August-September] – Delta - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28780 #Houston
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@escapehouston · Post #1844 · 21.04.2026 г., 16:57
Cheap Flights: Houston to/from Cincinnati $203-$226 round-trip [April-October] – American Airlines - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28776 #Houston
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@escapehouston · Post #1843 · 20.04.2026 г., 23:10
Nonstop Flights: Houston to/from Liberia, Costa Rica $366 round-trip [August-September] – United - Visit our website for example booking dates and more details. - https://escapehouston.com/?p=28772 #Houston
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