Themes
@ThemesM8 · Post #144 · 06.08.2021 г., 20:00
https://t.me/addtheme/I4QgkkdLo4WCyGiU 🌈@ThemesM8✨ #curly#curly_hair#hair#girl#girly#light#white#brown#android#soft#cute#sweet#digital_painting
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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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Home decor
@dzdigital3 · Post #18906 · 24.08.2025 г., 17:35
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Home decor
@dzdigital3 · Post #18894 · 20.08.2025 г., 18:13
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Home decor
@dzdigital3 · Post #18874 · 16.08.2025 г., 13:30
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Home decor
@dzdigital3 · Post #18872 · 15.08.2025 г., 14:31
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cosplayupload
@cosplayuploadtest2 · Post #102670 · 23.03.2025 г., 03:34
Title: Kiki_키키,_PhotoBook_‘Black_Hair_Marin_♥흑발_마린_키키♥’_Set.02 Authors: #None Tags: #None#Digital_Photobook#Kiki_키키#Kiki#키키#PhotoBook #‘Black #Hair#Marin #♥흑발 #마린#키키♥’ #Set #02 recommendation: None TelegraphLinks:page-0-44
cosplayupload
@cosplayuploadtest2 · Post #102637 · 23.03.2025 г., 03:31
Title: Kiki_키키,_PhotoBook_‘Black_Hair_Marin_♥흑발_마린_키키♥’_Set.01 Authors: #None Tags: #None#Digital_Photobook#Kiki_키키#Kiki#키키#PhotoBook #‘Black #Hair#Marin #♥흑발 #마린#키키♥’ #Set #01 recommendation: None TelegraphLinks:page-0-57
Home decor
@dzdigital3 · Post #18741 · 26.07.2025 г., 14:38
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Home decor
@dzdigital3 · Post #18913 · 26.08.2025 г., 14:25
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