TGTGInsighttelegram intelligenceLIVE / telegram public index
← Python Заметки
Назад кон каналите

TGINSIGHT SIMILAR POSTS

Најди сличен содржај

Изворен канал @pythonotes · Post #397 · 12 ное.

Погледај објаваПогледај оригинал

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

Hashtags

#pydantic#libs
Резултати

Пронајдени 79 слични објави

Пребарај: #march

当前筛选 #march清除筛选
悦读「优质少量RSS聚合」

@Dailyrss · Post #13296 · 23.03.2026 г., 00:45

Најди сличноПогледај

Wikipedia每日一图（#March 23, 2026）https://ift.tt/EHIGf8M A previously unpublished illustration intended for the Saturday Evening Post's 1943 New Year's edition. It was never used due to publisher demands that the illustrator, J.C. Leyendecker, create a more optimistic and patriotic cover that was sensitive to the families of American soldiers. It was publicly shown for the first time in 2020 as part of an auction.. 了解更多 . #Wikipedia每日一图

Hashtags

#march#wikipedia每日一图
悦读「优质少量RSS聚合」

@Dailyrss · Post #13295 · 22.03.2026 г., 00:45

Најди сличноПогледај

Wikipedia每日一图（#March 22, 2026）https://ift.tt/EdkunCs Royal angelfish (Pygoplites diacanthus), Ras Muhammad National Park, Red Sea, Egypt. The body of the royal angelfish is moderately elongate, is very compressed and can reach a length of up to 25 centimetres (9.8 in) It's widely distributed throughout the Indo-Pacific and can be found in the Red Sea and Indian Ocean around East Africa and the Maldives, stretching to the Tuamoto Islands, New Caledonia, and Great Barrier Reef. The royal angelfish occurs at depths ranging from 0 to 80m (0 to 262 ft), in coral rich areas of lagoons, reefs, and are also often found in the vicinity of caves. It is a carnivorous species that feeds on sponges and tunicates located throughout reefs and underwater caves. They are a non-migratory species that can be found solitary, in pairs, or groups. Probably the most spectacular fish I've ever seen underwater in terms of colors. we have no FPs of the whole family Pomacanthidae (marine angelfishes).. 了解更多 . #Wikipedia每日一图

Hashtags

#march#wikipedia每日一图
123•••67
← ПретходнаСтраница 1 од 7Следна →