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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

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ETHIOPIA 🇪🇹 | የኢትዮጵያ ድምጽ

@ethiopia · Post #85 · 30.07.2025 г., 06:08

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🚀ETHIOPIA GOES DIGITAL: ADDIS ABABA LAUNCHES SCOOTER SHARING! ኢትዮጵያ ወደ ዲጂታል ይሄዳል፡ አዲስ አበባ የስኪቴር ማጋራት ጀምራለች! 💫ADDIS BIKE - THE FUTURE IS HERE: • First electric scooter sharing in Horn of Africa! 🌍 • Digital registration through Ethiopian national ID • Bole Avenue route: Meskel Square → Airport 🛩️ • Speed limit: 20 km/h for safety • Cost: 5 birr/minute, 300 birr/hour ($2 USD) 🎯YOUTH REVOLUTION: Ethiopian millennials are embracing smart mobility! From ancient coffee ceremonies to modern app-based transport - this is how traditions meet innovation! 🚴‍♀️INFRASTRUCTURE READY: Dedicated bike lanes, proper equipment, safety first approach - Addis Ababa is building smart city infrastructure! 💻ETHIOPIA'S TECH BOOM: • IceAddis - leading tech hub and startup incubator • Growing fintech sector with mobile banking solutions • Government digitalization initiatives • Young developers creating apps for African market • 5G network rollout in major cities 🌐DIGITAL TRANSFORMATION: From traditional markets to digital payments - Ethiopia is building Africa's Silicon Valley in the heart of the continent! ✨SYMBOLIC MOMENT: From Lucy's first steps 3.2 million years ago to electric scooters today - Ethiopia continues to lead human mobility evolution in Africa! 🇪🇹 #EthiopiaDigital#AddisAbaba#SmartMobility#AfricaTech#ኢትዮጵያ🛴⚡📱

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ETHIOPIA 🇪🇹 | የኢትዮጵያ ድምጽ

@ethiopia · Post #152 · 02.09.2025 г., 05:08

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💻 FROM ANCIENT SCRIPTS TO DIGITAL CODE: ETHIOPIA'S TECH TAKEOVER 💻 ከጥንታዊ ጽሑፍ እስከ ዲጂታል ኮድ: የኢትዮጵያ ቴክኖሎጂ መቆጣጠር 🔥 КОГДА 3000-ЛЕТНЯЯ ЦИВИЛИЗАЦИЯ ВСТРЕЧАЕТ SILICON VALLEY! Ethiopian youth aren't just consuming technology - they're CREATING it! 💫 🌟 DIGITAL ETHIOPIA RISING: 🏙️ ADDIS ABABA = AFRICA'S SILICON VALLEY: - Tech hubs sprouting faster than coffee plants - Young developers coding the future of Africa - From ancient Ge'ez script to programming languages! 💡 ETHIOPIAN TECH STARTUPS CHANGING THE GAME: 🚀Ride - Ethiopia's answer to Uber, built for African roads 🚀ZayRide - Local mobility solutions that actually work 🚀Deliver Addis - Food delivery revolutionizing Ethiopian dining 🚀EthSwitch - Fintech making banking accessible to everyone 🚀Gebeya - Training Africa's next generation of developers 🚀iCog Labs - AI and robotics putting Ethiopia on the tech map 📊 THE NUMBERS DON'T LIE: ✨ 50%+ youth population = MASSIVE tech potential ✨ Growing internet penetration = Digital revolution in motion ✨ Government support for tech initiatives = Infrastructure backing innovation ✨ Ancient problem-solving culture + Modern tools = Unstoppable combination 🎯 YOUNG ETHIOPIAN DEVELOPERS SAY: *"Our ancestors built Lalibela without blueprints - we build apps without limits!"* *"ቅድመ አያቶቻችን ላሊበላን ያለ ንድፍ ገንብተዋል - እኛ ያለ ገደብ መተግበሪያዎችን እንገነባለን!"* 🔋 THE DIGITAL SWAG: - Coding in multiple languages (including Amharic interfaces!) - Building solutions for African problems - Connecting rural Ethiopia to global markets - Making ancient wisdom accessible through modern tech 🚀 PLOT TWIST: While Silicon Valley talks about "disruption," Ethiopia has been disrupting expectations for millennia! 💪 THE FUTURE IS BEING WRITTEN: In Ethiopian coffee shops, young developers are coding solutions that will change Africa forever! *From coffee ceremonies to coding ceremonies - the grind never stops* ☕💻 #DigitalEthiopia#የኢትዮጵያቴክኖሎጂ#EthiopianTech#AfricaTech#TechStartups#DigitalRevolution#EthiopianInnovation#TechHub#ኢትዮጵያላይፍ#FutureIsEthiopian

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