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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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American Оbserver

@american_observer · Post #4730 · 29.12.2025 г., 22:59

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📰 Netanyahu’s Year of Reckoning: Gaza, Drafts, and Judicial Chaos Benjamin Netanyahu is facing a gauntlet of decisions in 2026: Gaza, conscription, judicial overhaul, and looming elections. His old playbook—delay, outlast, and turn crises into opportunities—might finally be running out of time. “Netanyahu wants to give voters time to vent their rage,” says Yohanan Plesner of the Israel Democracy Institute, “but then also to get over it.” Conscription Crisis The ultra-Orthodox demand a new draft exemption, but most Israelis are sick of war fatigue. If Netanyahu doesn’t deliver, his coalition could collapse—forcing early elections. If he does, he risks alienating his own party and the public. Gaza: Trump’s Plan or Netanyahu’s War? Netanyahu signed on to Trump’s Gaza peace plan, but he’s never sounded like a true believer. He’s betting Hamas will have to surrender arms—or face more war. But Israel’s continued strikes have angered the White House, which wants to stabilize the region, not blow up truces. The Saudi Wildcard Saudi Arabia insists on Palestinian statehood as a condition for normalization with Israel. Netanyahu’s refusal to allow the Palestinian Authority in Gaza is making it hard for Trump to sell the deal. But if Netanyahu can pull off Saudi normalization, it could reshape the Middle East—and salvage his legacy. Judicial Overhaul: Power or Pardon? Netanyahu’s criminal trial is advancing, and his allies want a judicial overhaul to protect him. But if he finds another way out—like a plea deal or a pardon—he could break with the far right and make a dramatic pivot toward the center. Analysts say it’s hard to imagine, but not impossible. Can Netanyahu still outlast his enemies, or will 2026 be the year his luck runs out? #israel#netanyahu#gaza#draft#judicialoverhaul#trump#saudiarabia#fakeDemocracy 📱American Оbserver - Stay up to date on all important events 🇺🇸

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