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: #akashap
@PensivePost · Post #5438 · 28.09.2021 г., 13:10
#review#AkashAP Contemplating about this quote, it's quite interesting but confusing as well. After the mistake, why would a good man spend time in sorrow instead of learning. And a bad man too... Please describe.
@PensivePost · Post #5442 · 30.09.2021 г., 04:13
I am blind not with the eye, but with the heart; 'Trust' was one of them. #AkashAP#quote#review Meaning : i was blind with the heart (A kind man) because of that i did trust on someone more than myself. Every good people or a kind man did it once. 👍😁
@PensivePost · Post #5439 · 29.09.2021 г., 03:26
"Negativity surrounds man in despair." #AkashAP#quote#review
@PensivePost · Post #5436 · 28.09.2021 г., 04:56
After the mistake, The good man spends moments in sorrow and the bad man in pride. #AkashAP#quote#review
@PensivePost · Post #5435 · 28.09.2021 г., 03:26
Efforts of separate from eachother or Its thoughts, bring each other more closer. #AkashAP#quote#review
@PensivePost · Post #5453 · 06.10.2021 г., 10:42
The book shows the way to a person, Does not give it by crossing the path. #AkashAP#review#qoute
@PensivePost · Post #5452 · 06.10.2021 г., 10:23
"Excessive imagination destroys man" #AkashAP#review#qoute
@PensivePost · Post #5417 · 24.09.2021 г., 06:04
When she is dismal, The heart cries blart, An auspicious time, it was When I met her: The world says My heart is a stone heart, So how did this heart Fall in love with her? The sun isn't so beautiful When it rises: I forget my self When i look in her eyes. #AkashAP#review#shortpoem
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@PensivePost · Post #5451 · 06.10.2021 г., 09:59
I'm looking for a man who says, "Giving a relationship time doesn't break it." #AkashAP#review#satire
@PensivePost · Post #5444 · 01.10.2021 г., 03:29
Those who say: "I'm not in love", then Whose face comes with closed eyes? "Love makes its presence felt even in its absence." #AkashAP#review#words
@PensivePost · Post #5571 · 29.12.2021 г., 05:25
She's one in a billion!! Her smell's like rosemary perfume, And golden hair's like sonagachi; The lips are looking like amaryllis; The face is like the morning sun; Body is as soft as the balloon; Her voice is as sweet as elaichi; Brown eyes are like killing us – And such beauty is only one!! • Difficult Words • Sonagachi - known as Golden Tree Amaryllis - known as Red Beautiful Flower Elaichi - Cardamom #AkashAP#review#poem#oldone#noshare