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
Top 10 Benefits of Peanuts 🥜
(Groundnut or Mungfali)
1. Good for healthy Brain(Omega 3 & 6 fatty acids)
2. Protects from Heart disease
3. Fights Stomach Cancer
4. Good for healthy Hair Growth
5. Reduces bad Cholesterol
6. Fights against Depression
7. Good for healthy & Glowing Skin
8. Fights free-radicals (Anti-inflammatory)
9. Rich in Proteins & Fats(good)
10. Contains ample fiber
Nutrients available : Proteins, Vit. E, Minerals like Potassium, Magnesium, Phosphorus, Sodium & Zinc. Omega 3 & 6 fatty acids.
Nutritional Value per 100g
Calories : 567kcal
Protein : 26gm
Fats : 49gm
Bottom line : There's no reason not to munch on this cheaply available yet full of nutrition, crunchy & nutty peanuts. It's a boon for optimum health & wellness.
#foods
🚨Source : @HeathSafetyTps
Herbal Tea
Herbal tea is a decoction or infusion of herbs & spices.
There is a herbal tea for everything. Green tea is a great energy-boosting alternative to coffee, chamomile helps you go to sleep, fennel & peppermint teas aid digestion. Others are ginger, tulsi, even pepper & cinnamon, all extremely healthy.
So, make a good habit of drinking herbal teas.
#foods
⚠️ Also look at: Benefits of GINGER TEA
🚨Source: @HeathSafetyTps
Ginkgo Biloba - 🧠 herb
It's a leaf of the ginkgo tree, which is native to China & one of the oldest plants on the planet, having potential to treat Alzheimer's disease & age-related mental decline.
It's believed that it works by thinning the blood & thereby improving oxygen flow to the brain. The brain is a glutton for oxygen, so it's possible that even a slight lack of circulation can affect its performance.
Gingko improves both attention & memory, but as a brain booster for people with normal mental abilities, it remains controversial.
#foods
🚨Source: @HeathSafetyTps
Diet tips for Gum Health
What a person eats can directly affect the health of their teeth & gums. The foods that should be incorporated in your diet:
1. High-fiber fruits & vegetables, as these can help clean up the mouth, especially Apple🍎 & Ginger
2. Black & Green teas, which help reduce bacteria
3. Dairy products (such as milk, cheese, & yogurt) , as these foods help increase saliva production
4. Foods that contain fluoride, which include water & some poultry & seafood products
5. Sugar-free gum, as chewing it will increase saliva production
It's best to avoid these foods & beverages:
1. Alcohol , as it can dry out the mouth
2. Starchy foods that become stuck in the teeth
3. Sticky candies & sweets
4. Carbonated soft drinks that contain phosphoric & citric acids as well as sugar
#foods
🚨Source : @HeathSafetyTps
HEALTH TIPS:
Liver Detox Juice
Whenever you've a big night out or a heavy cheat meal, you can try a big juice full of fruit & vegetables with liver loving nutrients.
Relish this simple liver cleansing juice...
1 large carrot
1 beetroot
1 green apple
2 cups kale or spinach
1 grapefruit or orange
1 knob of ginger
1/2 cup water
Clean the fruit & vegetables before juicing.
Dilute with half a cup of water or add ice to your juice.
#foods
Source: @HeathSafetyTps
HEALTH TIPS:
Ginkgo Biloba - 🧠 herb
It's a leaf of the ginkgo tree, which is native to China & one of the oldest plants on the planet, having potential to treat Alzheimer's disease & age-related mental decline.
It's believed that it works by thinning the blood & thereby improving oxygen flow to the brain. The brain is a glutton for oxygen, so it's possible that even a slight lack of circulation can affect its performance.
Gingko improves both attention & memory, but as a brain booster for people with normal mental abilities, it remains controversial.
#foods
Join our community today @HeathSafetyTps
Please share now
Diet tips for Healthy Gum
What a person eats can directly affect the health of their teeth & gums. The foods that should be incorporated in your diet:
1. High-fiber fruits & vegetables, as these can help clean up the mouth, especially Apple🍎 & Ginger
2. Black & Green teas, which help reduce bacteria
3. Dairy products (such as milk, cheese, & yogurt) , as these foods help increase saliva production
4. Foods that contain fluoride, which include water & some poultry & seafood products
5. Sugar-free gum, as chewing it will increase saliva production
It's best to avoid these foods & beverages:
1. Alcohol , as it can dry out the mouth
2. Starchy foods that become stuck in the teeth
3. Sticky candies & sweets
4. Carbonated soft drinks that contain phosphoric & citric acids as well as sugar
#foods
Join 👉🏻@HealthSafetyTips