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: #9yearsofseva
@MyGovCoronaNewsdesk · Post #12804 · 19.06.2023 г., 09:38
Embark on a journey of progress and transformation! 🚀 Visit https://9years.mygov.in/ to discover the incredible achievements of the Modi Government in the last 9 years. Explore the remarkable strides made across various sectors, from healthcare to infrastructure, education to governance. #9YearsOfSeva
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@MyGovCoronaNewsdesk · Post #12784 · 30.05.2023 г., 09:02
🇮🇳 In 9 years, the Modi Government achieved an unprecedented combination of speed and scale, ensuring the timely completion of all projects! From highways and airports to digital infrastructure, India witnessed an era of efficient governance that propelled progress at an unmatched pace. #9YearsOfSeva https://youtu.be/L7x-8aIjSQ0
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@MyGovHindi · Post #6812 · 05.06.2023 г., 13:02
"सेवा, सुशासन और गरीब कल्याण को सर्मपित 9️⃣ साल" 🇮🇳 आइए इस वीडियों के माध्यम से देखें कैसे, बीते 9 वर्षों में #NewIndia जनसामान्य की आकांक्षाओं को पूरा करते हुए निरन्तर नई-नई उपलब्धियां रच रहा है। #9YearsOfSeva https://youtu.be/L7x-8aIjSQ0
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@MyGovHindi · Post #6806 · 30.05.2023 г., 09:03
"सेवा, सुशासन और गरीब कल्याण को सर्मपित 9️⃣ साल" 🇮🇳 आइए इस वीडियों के माध्यम से देखें कैसे, बीते 9 वर्षों में #NewIndia जनसामान्य की आकांक्षाओं को पूरा करते हुए निरन्तर नई-नई उपलब्धियां रच रहा है। #9YearsOfSeva https://youtu.be/L7x-8aIjSQ0
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@MyGovHindi · Post #6808 · 30.05.2023 г., 12:09
#PMAwasYojana के साथ, गरीबों एवं वंचितों का अपने पक्के घर का सपना साकार हो रहा है। #9YearsOfSeva
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@MyGovHindi · Post #6822 · 19.06.2023 г., 09:40
बीते 9 वर्षों में माननीय प्रधानमंत्री #NarendraModi के नेतृत्व में केंद्र सरकार द्वारा विभिन्न क्षेत्रों में हुई अविश्वसनीय उपलब्धियों को जानने हेतु अभी विजिट करेः https://9years.mygov.in/ #9YearsOfSeva
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@MyGovCoronaNewsdesk · Post #12803 · 17.06.2023 г., 05:54
Don't miss this remarkable video showcasing how the Modi government's relentless efforts over the past 9 years have propelled the development and preservation of India's rich cultural heritage. Visit: https://youtu.be/scGbw2m8ook #9YearsOfPreservingCulture #9YearsOfSeva
@MyGovCoronaNewsdesk · Post #12802 · 17.06.2023 г., 05:29
Check out this captivating snapshot showcasing the Modi government's remarkable progress in preserving and promoting India's cultural heritage. From restoring ancient monuments to revitalizing traditional arts, their efforts over the past 9 years have made India's legacy shine brighter than ever. #9YearsOfPreservingCulture #9YearsOfSeva
@MyGovCoronaNewsdesk · Post #12796 · 13.06.2023 г., 10:59
📈 India keeps dominating the digital payment landscape! 💸🇮🇳 With innovative solutions and widespread adoption, we're leading the way towards a cashless economy. 💻 #9YearsOfTechForGrowth#9YearsOfSeva
@MyGovCoronaNewsdesk · Post #12788 · 01.06.2023 г., 07:36
Empowering street vendors for a brighter future! PM SVANidhi is transforming lives & livelihoods, providing financial support, & fostering entrepreneurship among street vendors in India #9YearsOfGaribKalyan#9YearsOfSeva
@MyGovCoronaNewsdesk · Post #12786 · 30.05.2023 г., 12:01
With #PMAwasYojana, we're transforming housing for the underprivileged, providing them with a roof over their heads #9YearsOfSeva
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@MyGovCoronaNewsdesk · Post #12800 · 16.06.2023 г., 05:29
Check out this captivating snapshot showcasing the incredible strides made in environment and sustainability during the 9 years of the Modi government. #9YearsOfSustainableGrowth#9YearsOfSeva