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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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🇷🇺🇲🇹 Russian Embassy in Malta

@rusembmalta · Post #1383 · 06.03.2024 г., 16:20

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🎙 Foreign Minister Sergey Lavrov’s answers to questions during a special session of a large MGIMO discussion programme combined with the 7th Global Forum of Young Diplomats, Russia and Its Role in Shaping a Multipolar World (Sochi, March 4, 2024) 🔹 Western priorities in relations with Russia 🔹 The modern concept of multipolarity 🔹 The role of the UN in international relations 🔹 EU plans to interfere in the Russian presidential election 🔹 Fighting the politicisation of sport 🔹 Russia's relations with its closest partners 🔹 Russia-US relations 📰Read in full 📺Watch in full *** #CrimeanBridge What is interesting are the words said by Western figures, including the response of German politicians when the truth about the recording of conversations between German generals was revealed. Some of them are concerned there was a leak from a secure line. The fact that German weapons and the personnel servicing them are going to be used to attack the Russian Federation, including the Crimean Bridge and ammo depots, is not surprising. They wonder why the secure line turned out to be not so secure. This says a lot. #Election2024 We have accumulated a lot of evidence on how the EU embassies in Moscow are preparing for our presidential elections. I am referring to interference mechanisms, certain “supporting projects” for the non-systemic opposition – in short, things that embassies have no right to address. #RussiaUS The Americans approach us every now and then. They have asked us not to deploy weapons in space. They have asked for a meeting. As if nothing happened. They say they must defeat us on the battlefield in Ukraine but other than that, let’s discuss strategic issues. President Vladimir Putin said that they are not serious and it goes against the natural course of things.

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