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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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Addis Standard

@addisstandardeng · Post #22117 · 25.04.2026 г., 13:30

“Politics took journalism away from me.” A powerful reflection on media freedom and political pressure. Watch the full episode of The Standard Signal on YouTube 🔗https://www.youtube.com/watch?v=JCF8w7rEYhQ&t=1430s #TheStandardSignal#EthiopiaPolitics#Misteresillasie#ElectionDebate#PoliticalVoices#WomenInPolitics

Addis Standard

@addisstandardeng · Post #22098 · 23.04.2026 г., 16:32

#Premiering_now: From Newsroom to Frontline: Mistresillasie on Power, War & Resistance #TsedaleLemma speaks with #MistresillasieTamrat. Click here to watch: https://www.youtube.com/watch?v=JCF8w7rEYhQ #TheStandardSignal#EthiopiaPolitics#Misteresillasie#ElectionDebate #PoliticalVoices#WomenInPolitics

Addis Standard

@addisstandardeng · Post #22096 · 23.04.2026 г., 14:39

#Coming_UP: The Standard Signal | Ep.17: From Newsroom to Frontline: Mistresillasie on Power, War & Resistance #TsedaleLemma speaks with #MistresillasieTamrat. From her striking statement, “politics took journalism away from me,” to her defense of possible participating in upcoming elections, Mistresillasie speaks with clarity. Premiers at: 7:30 PM EAT tonight. Subscribe to watch: https://www.youtube.com/@AddisStandard #TheStandardSignal#EthiopiaPolitics#Misteresillasie#ElectionDebate #PoliticalVoices#WomenInPolitics

Addis Standard

@addisstandardeng · Post #21936 · 03.04.2026 г., 16:30

#Premiering_now: The Standard Signal | Ep.15: Ethiopia Under Pressure: Fuel Crisis, Global & Regional Instability, a Fragile Election | Jawar Mohammed Click here to watch: https://www.youtube.com/watch?v=HexAbPk8Dkw Ethiopia is facing mounting pressures. In Episode 15 of The Standard Signal, host Tsedale Lamma brings Jawar Mohammed to discuss the deepening fuel shortage and corruption concerns in Ethiopia, the looming fertilizer crisis and its implications for food security, and the impact of Middle East war on Ethiopia’s economy and stability. #AddisStandard#TheStandardSignal#Ethiopia#JawarMohammed#EthiopiaPolitics#Corruption#FuelCrisis#HornOfAfrica#Tigray#Amhara#Oromia#EthiopiaElection#AfricaPolitics#EthiopiaNews#AfricanPolitics#Geopolitics

Addis Standard

@addisstandardeng · Post #21935 · 03.04.2026 г., 14:30

#Coming_UP: The Standard Signal | Ep.15: Ethiopia Under Pressure: Fuel Crisis, Global & Regional Instability, a Fragile Election | Jawar Mohammed #TsedaleLemma speaks with #JawarMohammed about the growing challenges facing Ethiopia, from global and regional tensions to domestic instability, corruption and Ethiopia’s fragile election. Premiers at: 7:30 PM EAT tonight. Subscribe to watch: https://www.youtube.com/@AddisStandard #AddisStandard#TheStandardSignal#Ethiopia#JawarMohammed#EthiopiaPolitics#Corruption#FuelCrisis#HornOfAfrica#Tigray#Amhara#Oromia#EthiopiaElection#AfricaPolitics#EthiopiaNews#AfricanPolitics#Geopolitics

Addis Standard

@addisstandardeng · Post #21764 · 18.03.2026 г., 16:31

Premiering now: The Standard Signal | Ep.14: Tigray on the Brink: Survival, Famine Risks, and the Shadow of Renewed War in Ethiopia. Click here to watch: https://www.youtube.com/watch?v=YDjUomfsWnA Tigray is facing fragile recovery, deepening humanitarian strain, and growing fears of renewed war. In this episode of The Standard Signal, Duke Burbridge shares what he witnessed on the ground — from survival and displacement to aid challenges and famine risks. #StandardSignal#EthiopiaPolitics#ONLF#Ogaden#PeaceAgreement#PoliticalRepression#ShrinkingCivicSpace#ResourcePolitics#OilAndGas#Federalism#DemocracyInEthiopia#HornOfAfrica#Accountability#PoliticalDialogue#Tigray