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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 · Post #65 · 13.07.2025 г., 16:23

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🎓ETHIOPIAN STUDENTS IN RUSSIA: A CROSS-CONTINENTAL EDUCATIONAL JOURNEY ኢትዮጵያውያን ተማሪዎች በሩሲያ፡ የትምህርት ጉዞ 💡Why thousands choose Russian universities: Quality education in medicine, engineering, and economics that builds Ethiopia's future workforce. 🏛️TOP UNIVERSITIES | ዋና ዩኒቨርሲቲዎች: • Moscow State University (МГУ) - Medicine: 350,000-450,000 RUB/year • RUDN University - International programs: 280,000-380,000 RUB • Saint Petersburg State - Engineering: 320,000-420,000 RUB • Kazan Federal University - Economics: 250,000-350,000 RUB ❄️WINTER SURVIVAL GUIDE | የክረምት መጸብ: 🧥 "Первые три месяца я носил 5 курток одновременно!" - Ahmed, 2nd year 🌡️ From +40°C Ethiopia → -35°C Russia shock 🏠 "Общага спасла мне жизнь" - centralized heating discovery 🍲CULINARY ADVENTURES | የምግብ ጉዞ: 😋 "Что это за красный суп? Похож на Ethiopian stew!" - First borscht experience 🥞 Injera + Russian blini = unexpected combination success ☕ "Где настоящий Ethiopian coffee?!" - desperate search stories 💰FINANCIAL REALITY | የገንዘብ እውነታ: • Monthly living costs: 15,000-25,000 RUB (~4,000-7,000 ETB) • "Стипендия 2,000 рублей хватает на хлеб и чай" - budget student life • Part-time work opportunities in translation/tutoring 🎯PRO TIPS | ጠቃሚ ምክሮች: 📚 Russian language prep is CRUCIAL - start 6 months early 🏥 Medical insurance mandatory: ~12,000 RUB/year 📱 Download "Тройка" app for Moscow transport 🏠 "Ищите общагу рядом с метро" - location matters! ✨SUCCESS STORIES: "После 6 лет в России, теперь работаю врачом в Addis Ababa. Спасибо, Россия!" - Dr. Meron, graduate Expert-reviewed content | Verified by Ethiopian student community in Russia #EthiopianStudents#RussianEducation#StudyAbroad#ኢትዮጵያ#EducationJourney🇪🇹🇷🇺

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@ethiopia · Post #64 · 11.07.2025 г., 16:28

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🎓 ETHIOPIAN EDUCATION: Universities, Careers & Global Dreams ትምህርቶች በኢትዮጵያ 💡 Discover Ethiopia's education landscape: from ancient learning centers to modern universities, where young Ethiopians dream of studying abroad. 🏛️ TOP UNIVERSITIES IN ETHIOPIA | ታዋቂ ዩኒቨርሲቲዎች በኢትዮጵያ • Addis Ababa University (1950) - The flagship, medicine & engineering excellence • Jimma University - Medical powerhouse, largest health sciences faculty • Mekelle University - Engineering & technology focus, northern Ethiopia • Bahir Dar University - Agriculture & water resources specialization • Hawassa University - Business & agricultural sciences hub near beautiful Lake Hawassa 📍 HAWASSA UNIVERSITY SPOTLIGHT | ሀዋሳ ዩኒቨርሲቲ • Located in stunning Hawassa city with lakeside campus views • Strong business school - produces entrepreneurs for Ethiopia's growing economy • Agricultural innovation hub with international research partnerships • Why business matters: Ethiopia needs skilled managers and finance experts for economic transformation from agriculture to industrialization 🔥 MOST DEMANDED PROFESSIONS | ኢትዮጵያ ውስጥ የሚፈለጉ ሙያዎች • Medicine & Health Sciences - doctor shortage in rural areas (critical need!) • Engineering (Civil, Electrical, Software) - infrastructure boom demands • Agriculture & Food Science - 80% population depends on farming • IT & Computer Science - digital transformation wave • Business & Economics - growing private sector opportunities 🔬 WHAT IS STEM? | ሳይንስ፣ ቴክኖሎጂ፣ ኢንጂነሪንግ እና ሒሳብ • Science, Technology, Engineering, Mathematics - the future job engines • Government priority: 70% STEM vs 30% humanities in universities • Critical for Ethiopia's Vision 2030 development goals • Creates jobs in manufacturing, tech, healthcare, and infrastructure sectors 🌍 ETHIOPIANS ABROAD | የውጭ ሀገር የትምህርት እድል • Top destinations: USA, Germany, UK, Russia, China, India • Popular fields: Medicine (Russia/Ukraine), Engineering (Germany), IT (USA) • Scholarship programs: Fulbright, DAAD, Chinese Government, Indian ICCR • Brain drain vs. knowledge transfer - complex challenge 💰 EDUCATION COSTS & ACCESS | የ ትምህርት ወጪና ተደራሽነት • Public universities: ~5,000-8,000 ETB/year (affordable!) • Private institutions: 70,000-150,000 ETB/year • English medium instruction from Grade 9+ • Rural-urban education gap - major inequality issue 🚀 FUTURE TRENDS | የወደፊት አዝማሚያዎች • STEM focus - government priority for development • Online learning expansion post-COVID • Technical & Vocational Education (TVET) growth • International partnerships increasing 💰 PRO TIPS: Ethiopian Students Union associations exist in major global cities. Many Ethiopian graduates abroad send remittances home - $5+ billion annually. The government offers incentives for diaspora professionals to return and contribute to development. Entrepreneurship education is crucial for addressing youth unemployment. ✨ Expert-reviewed content | Verified by local Ethiopian education specialist #Ethiopia#ኢትዮጵያ#EthiopianEducation#StudyAbroad#HigherEducation#EthiopianStudents

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