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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
Пребарај: #cerebrospinalmeningitis
@ncdcgov · Post #3927 · 27.07.2023 г., 18:17
Any form of meningitis is a medical emergency. Download our latest #CerebrospinalMeningitis situation report for a summary of the disease situation and our response activities 🔗 https://ncdc.gov.ng/diseases/sitreps/?cat=6&name=An%20Update%20of%20Meningitis%20Outbreak%20in%20Nigeria
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@ncdcgov · Post #4041 · 17.10.2023 г., 18:12
We have published our latest situation report on #CerebrospinalMeningitis. This report provides a summary of the current epidemiological situation in Nigeria, and our preparedness and response activities. 🔗https://ncdc.gov.ng/diseases/sitreps/?cat=6&name=An%20Update%20of%20Meningitis%20Outbreak%20in%20Nigeria #TakeResponsibility
@ncdcgov · Post #4174 · 29.01.2024 г., 08:41
The highest burden of #CerebrospinalMeningitis in Nigeria occurs in the “Meningitis Belt” which includes all 19 states in the Northern region, the FCT, and some southern states. Ensure you and your loved ones have received the appropriate vaccination required to protect against #meningitis Public Health Advisory: https://ncdc.gov.ng/news/508/cerebrospinal-meningitis-public-health-advisory
@ncdcgov · Post #3789 · 31.03.2023 г., 08:52
Vaccination is the best prevention measure against #CerebrospinalMeningitis. Ensure you complete the routine immunisation for your children or wards to keep them safe and #healthy. #TakeResponsibility
@ncdcgov · Post #3782 · 27.03.2023 г., 08:16
#CerebrospinalMeningitis (CSM) is an easily transmissible disease with confirmed cases reported all year round in Nigeria. Download our latest #CSM situation report for a summary of the disease situation and our response activities 🔗https://ncdc.gov.ng/diseases/sitreps/?cat=6&name=An%20Update%20of%20Meningitis%20Outbreak%20in%20Nigeria #TakeResponsibility
@ncdcgov · Post #4336 · 22.07.2024 г., 09:39
Vaccination is the best prevention measure against #CerebrospinalMeningitis. Ensure you complete Nigeria's routine immunisation schedule for your children or wards to keep them safe and #healthy. #DefeatMeningitis
@ncdcgov · Post #4398 · 04.10.2024 г., 09:35
Are you familiar with the signs of #Meningitis in ADULTS? Know the signs and symptoms to report early to a healthcare facility when noticed. #CerebrospinalMeningitis is a MEDICAL EMERGENCY! #StaySafeStayHealthy#WorldMeningitisDay 🔗 https://youtu.be/ZhZdin-Cn9s?feature=shared
@ncdcgov · Post #4396 · 03.10.2024 г., 08:59
Vaccination is the best prevention measure against #CerebrospinalMeningitis. Ensure you complete Nigeria's routine immunisation schedule for your children or wards to keep them #safe from vaccine-preventable diseases. #DefeatMeningitis #WorldMeningitisDay