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Изворен канал @pythonotes · Post #397 · 12 ное.

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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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Офис Почётного консула ЮАР в Екатеринбурге // Office of Honorary Consul of South Africa in Yekaterinburg

@sarconsulurals · Post #2946 · 27.12.2025 г., 04:15

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🎶 Дэвид Уоткинс «Рождество в Кейптауне» 🎄 _____________ 🎶David Watkyns Christmas in Cape Town🎄 Christmas In Cape Town You won’t see any snowfall At this time of year No reindeer in the valley As the mistletoe appears And underneath the blue sky Is a perfect summer’s day with beaches filled with people All the beauty on display Cause when it's Christmas in Cape Town There's happiness and joy And smiles upon the faces Of every boy and girl The sun is shining brightly Over mountains and the seas When it’s Christmas in Cape Town It’s a special place to be Take a walk on Table Mountain Or on the grand parade And we’ll see the minstrels dancing With an umbrella for shade In the night-time there’ll be music New people you can meet And the lights will shine down brightly All the way down Adderley Street And there’s not another place I’d rather be Cause when it's Christmas in Cape Town There's happiness and joy And smiles upon the faces Of every boy and girl The sun is shining brightly Over mountains and the seas When it’s Christmas in Cape Town It’s a special place to be When it's Christmas in Cape Town There's happiness and joy And smiles upon the faces Of every boy and girl The sun is shining brightly Over mountains and the seas When it’s Christmas in Cape Town It’s a special place to be, to be And the sun is shining brightly Over mountains and the seas When it’s Christmas in Cape Town It’s a special place for me 📹https://www.youtube.com/watch?v=_Zr_Ub94muk #Christmas#SouthAfrica#Capetown#DavidWatkyns#Music

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Офис Почётного консула ЮАР в Екатеринбурге // Office of Honorary Consul of South Africa in Yekaterinburg

@sarconsulurals · Post #1639 · 25.12.2024 г., 05:16

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🎶 Дэвид Уоткинс «Рождество в Кейптауне» 🎄 _____________ 🎶David Watkyns Christmas in Cape Town🎄 Christmas In Cape Town You won’t see any snowfall At this time of year No reindeer in the valley As the mistletoe appears And underneath the blue sky Is a perfect summer’s day with beaches filled with people All the beauty on display Cause when it's Christmas in Cape Town There's happiness and joy And smiles upon the faces Of every boy and girl The sun is shining brightly Over mountains and the seas When it’s Christmas in Cape Town It’s a special place to be Take a walk on Table Mountain Or on the grand parade And we’ll see the minstrels dancing With an umbrella for shade In the night-time there’ll be music New people you can meet And the lights will shine down brightly All the way down Adderley Street And there’s not another place I’d rather be Cause when it's Christmas in Cape Town There's happiness and joy And smiles upon the faces Of every boy and girl The sun is shining brightly Over mountains and the seas When it’s Christmas in Cape Town It’s a special place to be When it's Christmas in Cape Town There's happiness and joy And smiles upon the faces Of every boy and girl The sun is shining brightly Over mountains and the seas When it’s Christmas in Cape Town It’s a special place to be, to be And the sun is shining brightly Over mountains and the seas When it’s Christmas in Cape Town It’s a special place for me 📹https://www.youtube.com/watch?v=_Zr_Ub94muk #Christmas#SouthAfrica#Capetown#DavidWatkyns#Music

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#christmas#southafrica#capetown#davidwatkyns#music