Најди сличен содржај

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

Hashtags

#pydantic #libs

Резултати

Пронајдени 3 слични објави

Пребарај: #theunruled

当前筛选 #theunruled清除筛选

NO Kings 🚫👑

@No_king_No_King · Post #168 · 12.04.2026 г., 09:46

Најди слично Погледај

Why We’re Here. Why Now. 🚫👑 Look, we all feel it. Whether you’re on the left, the right, or somewhere in the middle—it doesn’t matter. This isn't about a political party. This is about the fact that we were never meant to be subjects. We were meant to be Citizens. The "No King" movement isn't just a hashtag; it’s a wake-up call. We’re watching a system where the elites act like royalty while the rest of us struggle to keep our heads above water. If we don't stand up now, if we stay silent, the future won't belong to us—it’ll belong to those who think they own us. We get it. Not everyone can march in the streets. Not everyone can be on the frontlines. Some of you are busy working two jobs, raising kids, or just trying to survive. But in your heart, you know the current path is broken. You know things must change. How can you help? It’s simple. Truth is our greatest weapon. Smallest act of defiance? Share. Share the posts here. Spread the word. Don't let the "official" narrative be the only one people hear. We aren't asking for your vote. We’re asking for your voice. No Masters. No Monarchs. No Kings. ⛓ #NoKings#PowerToThePeople#TheUnruled#AmericaAwakened ✈️📣t.me/No_king_No_King

Hashtags

#nokings #powertothepeople #theunruled #americaawakened

NO Kings 🚫👑

@No_king_No_King · Post #3 · 06.04.2026 г., 17:23

Најди слично Погледај

Hashtags

#nokings #powertothepeople #theunruled #americaawakened

NO Kings 🚫👑

@No_king_No_King · Post #34 · 06.04.2026 г., 20:35

Најди слично Погледај

A guy whose rap sheet for pedophilia is growing day by day shouldn't be anywhere near a position of power in this country. #NoKings #TheUnruled #AmericaAwakened #Epsteinfile ✈️📣t.me/No_king_No_King

Hashtags

#nokings #theunruled #americaawakened #epsteinfile