TGINSIGHT SIMILAR POSTS
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: #stopcholera
@ncdcgov · Post #4412 · 17.10.2024 г., 08:58
One of the ways cholera spreads quickly is through poor water storage. Ensure safe drinking water: Avoid consuming water from contaminated sources. Proper storage: Store drinking water in clean containers with tightly sealed lids. Treat water: If unsure about the safety of your water source, boil it or use a water purification method. #STOPcholera
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@ncdcgov · Post #4394 · 01.10.2024 г., 12:44
Cholera spreads easily through contaminated food and water, especially during the rainy season. If you notice symptoms like severe diarrhoea, vomiting, nausea and fever, seek medical help immediately! Early treatment saves lives. #STOPcholera
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@ncdcgov · Post #4377 · 10.09.2024 г., 09:14
Unsafe practices such as improper disposal of refuse and open defecation endanger the safety of water used for drinking and personal use. This rainy season: ✅Only consume water from safe sources ✅Stop open defaecation ✅Dispose of trash properly ✅Ensure proper drainage of sewage #STOPCholera
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@ncdcgov · Post #4328 · 12.07.2024 г., 08:59
ALWAYS boil your water before drinking. Water from CONTAMINATED storage tanks are not safe for drinking. Make your water safe: Boil and store in properly covered containers before drinking. #STOPCholera
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@ncdcgov · Post #4315 · 24.06.2024 г., 09:22
Prompt administration of oral rehydration solution (ORS) helps replace lost fluids while the person seeks treatment at the health facility. ORS must always be prepared with safe, potable drinking water. #STOPCholera
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@ncdcgov · Post #4309 · 17.06.2024 г., 14:13
REMEMBER: regular handwashing with soap under running water saves lives🧼 Let's keep our hands clean and our loved ones safe. Watch, learn, download and share #STOPCholera
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@ncdcgov · Post #3826 · 12.05.2023 г., 14:18
As the rainy season has started, ensure to practice proper environmental hygiene to prevent the spread of cholera at home and in your communities ❌Avoid open defaecation ✅Dispose of waste in designated areas ✅Keep sewers clear from refuse #StopCholera
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@ncdcgov · Post #3771 · 16.03.2023 г., 09:14
Unsafe practices such as improper disposal of refuse & defaecating in open places put the safety of water used for drinking & personal use at risk. #STOPCholera, ensure to: ➡️Keep your environment clean ➡️Drink or use water that is boiled & stored safely ➡️STOP open defecation
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@ncdcgov · Post #4405 · 11.10.2024 г., 09:07
#Cholera can spread through contaminated foods. Make your foods safe before consumption: ➡️PREPARE your food in a clean area, away from sewage or waste bins ➡️WASH fruits and vegetables properly with clean water ➡️STORE your food in well-covered containers ➡️COOK your food properly before eating ➡️USE water from safe sources #STOPcholera
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@ncdcgov · Post #4404 · 10.10.2024 г., 09:21
UNCLEAN WATER, unwashed hands, and uncovered food are some of the ways #Cholera germs are spread. Ensure your water is safe before use: ➡️BOIL water before drinking ➡️USE water from safe sources ➡️STORE water in properly covered containers ➡️STOP open defecation #STOPCholera
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@ncdcgov · Post #4400 · 07.10.2024 г., 08:44
Severe cases of #cholera can lead to death within hours due to massive loss of body fluid. Ensure prompt administration of oral rehydration solution (ORS) to replace lost fluids and visit a health care facility immediately for proper treatment. Do not self-medicate #STOPcholera
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@ncdcgov · Post #4388 · 24.09.2024 г., 09:53
The time between #cholera infection and the appearance of symptoms is 2 hours to 5 days Please do not self-medicate. Visit a healthcare facility immediately for proper diagnosis and treatment. #STOPcholera
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