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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 House Brussels-Europe

@rushousebrussels · Post #2116 · 02.10.2024 г., 06:32

Today we continue the topic of confusing emphases! You can find the previous post here. ❓And, as per our tradition, I have a question: What word pairs confused you the most when speaking Russian? Share your stories in the comments! 📸: Pavel Kuzmichev, OZ_Media, Lucy Lambriex, LauriPatterson, bymuratdeniz, David Wall, Westend61, Mariha-kitchen, stocknshares/Getty Images #russianclasses 🔔Russia Beyond

Russian House Brussels-Europe

@rushousebrussels · Post #2103 · 18.09.2024 г., 09:11

Let's learn the diminutive forms for animal names! тигр -> тигрёнок медведь -> медвежонок слон -> слонёнок курица -> цыплёнок лошадь -> жеребёнок ❓Would you like to have any of these as a pet? :) P.S. Catch more of my lessons on YouTube! #russianclasses

Russian House Brussels-Europe

@rushousebrussels · Post #2100 · 10.09.2024 г., 07:54

Привет! We already made blini and kvass - time for okroshka! You’ll find the exact amounts of the ingredients to use here. ❓Have you tried okroshka? And what would you like to cook for next time? 📷: Maria Afonina; Yulia Gusterina/Getty Images #russianclasses 🔔Russia Beyond

Привет, салют и здравствуйте! Today we'll learn 5 Russian greetings. Formal ones: 🇷🇺Здравствуйте! 🇬🇧Hello! 🇷🇺Приветствую! 🇬🇧Greetings! Informal: 🇷🇺Привет! 🇬🇧Hi! 🇷🇺Салют! 🇬🇧Salutations! (Literally: "firework!") Very informal and conversational: 🇷🇺Здорово! (pronounced as ‘здарова!’) 🇬🇧Hey/What's up! ❓Do you know other (unusual) Russian greetings? Drop them in the comments! P.s. watch more videos here! #russianclasses 🔔Russia Beyond

Russian House Brussels-Europe

@rushousebrussels · Post #2085 · 27.08.2024 г., 13:19

🔊Sound on ☕ please, repeat Привет! Tired of learning Russian? Great news for you today then: we have thousands of words that are similar to English ones! Let’s start with those relating to food! Notice that the pronunciation is not always similar, so watch out for those accents! Still, learning Russian versions of the words you already know is far easier than learning absolutely new ones 🙂 That’s not the end of the list! Do you have any more examples? Drop them down in the comments! 👇🏼 Credits: Westend61, Aleksandr Kuzmin, Martin Barraud, serggn, Chris Stein, Halfdark/Getty Images Sourse: Russia Beyond https://t.me/russiabeyond/8927 #russianclasses#russianbeyond#РусскийДом#RussianHouse#Образование#КРЯ#brussels#belgium#educationrussia#RussianHouseBrussels#russianlanguagecoursesbrussels#russianlanguage#learnrussian#studyrussian