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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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Nigeria Centre for Disease Control (NCDC)

@ncdcgov · Post #4614 · 03.03.2026 г., 22:37

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PRESS STATEMENT: Urgent State Action Needed as Lassa Fever Cases Rise The Nigeria Centre for Disease Control and Prevention (NCDC) has called for urgent and strengthened state level action as Lassa fever cases continue to rise during the current peak dry season (November–April). With confirmed cases reported across multiple states and increasing infections among healthcare workers, NCDC emphasizes the need for full activation of State Incident Management Systems, strict enforcement of Infection Prevention and Control (IPC) measures, adequate supply of PPE, improved surveillance, and stronger community engagement. State governments are urged to prioritise outbreak response funding, protect healthcare workers, and close identified operational gaps contributing to preventable deaths. 🔗 Read the full press statement here: https://ncdc.gov.ng/news/534/2-march-2026-%7C-ncdc-calls-for-strengthened-state-level-action-as-lassa-fever-cases-rise-during-peak-season Members of the public are advised to: ✅Maintain clean environments ✅Prevent rodent infestation ✅Store food safely ✅Practice good hand hygiene ✅Seek early medical care at the nearest health facility if symptoms occur and avoid self medication. Lassa fever is treatable, and early detection saves lives. For inquiries or to report suspected cases, call the NCDC toll-free line: 6232. Stay informed. Stay protected. Stay healthy. #LassaFeverAwareness#PressRelease#NCDCNigeria

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Nigeria Centre for Disease Control (NCDC)

@ncdcgov · Post #4606 · 20.02.2026 г., 10:03

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#Lassa fever is preventable, awareness is your first line of defense. ✅Avoid contact with rodents and their droppings ✅Store food properly ✅Maintain good hygiene by washing your hands regularly and keeping your surroundings clean and rodents free Seek medical care early if you notice symptoms such as : ✔️Fever ✔️Weakness ✔️Severe headache ✔️Cough ✔️Sore throat Stay informed, Stay Safe!! Prevent. Detect early. Save lives. #LassaFeverAwareness#PublicHealth#NCDCNigeria

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