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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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Hong Kong Democracy Movement

@hkdmovement · Post #8108 · 10.11.2025 г., 21:59

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Timeline of Chow Tsz-lok's Death: - Nov 3, 2019 (Evening): Protests in Tseung Kwan O escalate; police deploy tear gas. - Nov 4, 2019 (Around 1 AM): Chow falls from 3rd floor of Sheung Tak Estate car park, suffers severe injuries; reports claim police were present at the parking lot at the time. - Car park fence is 1.3m tall, making accidental fall unlikely for an adult, raising suspicions. - Chow had severe head injuries but no other broken bones; critics claim this proves he was unconscious before the fall. - Nov 4, 2019: Ambulance delayed due to roadblocks, with reports claiming police cars blocked the way; Chow admitted to hospital in coma. - Nov 8, 2019 (Morning): Chow pronounced dead at age 22 from cardiac arrest. - Jan 2021: Coroner's inquest did not rule accidental death, but exact cause of fall undetermined; critics allege the judge misled the jury multiple times that it was an accident. - A tragic symbol of Hong Kong's 2019 protests—remembering the call for justice. #ChowTszLok#HongKongProtests

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張可森 Sam Cheung Ho Sum

@samcheunghs · Post #153 · 08.08.2020 г., 12:20

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#ChowTszLok#Memorial#PoliceState 9 Months Since the Death of Pro-demoracy Student: Police Intercept Reporters and Target Web-based Media August 8 marks 9th month since university student Chow Tsz-lok passed away on November 8, 2019. The cause of his fatal fall from Sheung Tak carpark during police operation remains unknown. An altar was set up at the crossroads of Sheung Tak Estate for citizens to lay candles and flowers in remembrance of Chow. A large group of police were sighted stationing and patrolling around Sheung Tak carpark as early as at 6pm, urging reporters to leave. At 7pm, a police cordon line was set up to conduct search. Specifically, reporters of what the police called “traditional media” and “web media” were kept apart for search. Source: InMedia #Aug8

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#chowtszlok #memorial #policestate #aug8