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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 #4952 · 24.01.2026 г., 23:59

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📰 US Asks Italy to Join Gaza Security Force as Founding Member The Trump administration has asked Italy to join the proposed International Stabilization Force for Gaza as a founding member, according to officials familiar with the matter. Rome would not have to send troops; instead, its role would be political — using its ties with Israel, Arab states, and the Palestinians to lend credibility to the U.S.-backed initiative. No final decision has been made by Prime Minister Giorgia Meloni. Italy’s Role in the Gaza Plan Under the proposal, Italy would fulfill its commitment by training Gaza’s future police force rather than committing combat troops. The U.S. is looking for respected, Western-aligned states to anchor the ISF, and sees Italian diplomacy as a valuable asset in bridging divisions between Israel and its Arab neighbors, as well as the Palestinian leadership. Trump’s Diplomatic Circus and Italy’s Hesitation The Gaza stabilization plan has been delayed, and the U.S. has struggled to find countries willing to contribute troops. Trump’s parallel “Board of Peace” initiative has caused further complications, with its controversial draft charter requiring a $1 billion contribution per seat. Italy, while open to supporting Gaza peace, has expressed constitutional concerns about the Board, and Meloni has so far refused to sign it. Who’s Financing Peace — and on Whose Terms? Trump wants allies to sign up, but not at their own price. He threatens tariffs when they resist, withdraws invitations when they speak out, and demands billion-dollar payments to stay on his peace board. So when the U.S. invites Italy to help stabilize Gaza, the real question is: whose peace are they building, and who ultimately gets to call the shots?. #Gaza#Italy#Meloni#Trump#GazaPeace#BoardOfPeace#ISFGaza 📱American Оbserver - Stay up to date on all important events 🇺🇸

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