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 1 слични објави

Пребарај: #pakistanmediating

当前筛选 #pakistanmediating清除筛选

Crypto M - Crypto News

@CryptoM · Post #65155 · 11.04.2026 г., 13:17

Најди слично Погледај

🚀 U.S.–Iran Discussions Begin as Vice President Vance Leads Talks in Islamabad Key Takeaways JD Vance is leading high-stakes talks with Iran in Islamabad.Negotiations aim to stabilize the ceasefire and end the conflict.Talks are indirect and mediated by Pakistan amid deep mistrust.Key issues include Strait of Hormuz, sanctions, and nuclear program. Talks Officially Underway Discussions involving the United States and Iran have officially begun in Islamabad, with JD Vance heading the US delegation. The negotiations are part of a broader effort to extend a fragile ceasefire and potentially move toward a longer-term resolution of the conflict. Pakistan Acting as Mediator The talks are being hosted and mediated by Pakistan, which has played a central role in facilitating communication between both sides. Meetings are taking place under tight security conditionsDelegations are engaging through indirect channels, though direct talks may occurPakistani officials are coordinating between both sides to push toward progress High-Stakes Agenda Key topics under discussion include: Reopening the Strait of Hormuz (critical for global oil supply)Potential sanctions relief for IranLimits on Iran’s nuclear programBroader regional stability and ceasefire enforcement Tensions and Mistrust Remain High Despite the start of talks, major disagreements persist: Iran has set conditions, including halting certain military actionsThe US has maintained a firm stance and warned against delaysBoth sides remain cautious, reflecting deep geopolitical mistrust #USIranTalks#JDVance#Islamabad#PakistanMediating#Ceasefire#StraitOfHormuz#Sanctions#NuclearProgram#RegionalStability#GeopoliticalTensions#DiplomaticNegotiations#HighStakes

Hashtags

#usirantalks #jdvance #islamabad #pakistanmediating #ceasefire #straitofhormuz #sanctions #nuclearprogram #regionalstability #geopoliticaltensions #diplomaticnegotiations #highstakes