@sgmrt · Post #1990 · 04.07.2024 г., 00:09
[EWL] CLEARED: Train svcs from #BoonLay to #Clementi have resumed. Free regular bus & free bridging bus svcs have ended. - SMRT
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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
Пребарај: #clementi
@sgmrt · Post #1990 · 04.07.2024 г., 00:09
[EWL] CLEARED: Train svcs from #BoonLay to #Clementi have resumed. Free regular bus & free bridging bus svcs have ended. - SMRT
@sgmrt · Post #1989 · 04.07.2024 г., 00:04
[EWL] UPDATE: Fault on the EWL has cleared, train service has resumed. Free regular bus and bridging bus services are still available between #BoonLay & #Clementi. - SMRT
@sgmrt · Post #1988 · 03.07.2024 г., 23:54
[EWL] UPDATE: Fault on the EWL has cleared, train services are progressively returning to normal speed. Free regular bus & bridging bus services are still available between #BoonLay & #Clementi. - SMRT
@sgmrt · Post #1987 · 03.07.2024 г., 23:54
[EWL] UPDATE: Fault on the EWL has cleared, train services are progressively returning to normal. Free regular bus and bridging bus services are still available between #BoonLay and #Clementi. - SMRT
@sgmrt · Post #2409 · 05.08.2025 г., 22:05
[EWL]: Due to a track point fault, pls add 15mins train travel time from #BoonLay to #Clementi towards #PasirRis. - SMRT
@sgmrt · Post #1985 · 03.07.2024 г., 23:14
[EWL] UPDATE: Due to a track fault, pls add 30mins train travel time from #BoonLay to #Clementi towards #PasirRis. Free regular bus & free bridging bus svcs are available btwn #BoonLay and #Clementi. - SMRT
@sgmrt · Post #1984 · 03.07.2024 г., 23:14
[EWL] UPDATE: Due to a track fault, pls add 20mins train travel time from #BoonLay to #Clementi towards #PasirRis. Free regular bus & bridging bus svcs are available btwn #BoonLay and #Clementi. - SMRT
@sgmrt · Post #1980 · 03.07.2024 г., 22:24
[EWL] UPDATE: Train svc is available from #BoonLay to #Clementi towards #PasirRis. Free regular bus svcs from #BoonLay to #Clementi. Our station staff will assist. - SMRT
@sgmrt · Post #1979 · 03.07.2024 г., 22:24
[EWL]: Due to a track fault, pls add 20mins train travel time from #BuonaVista to #Clementi towards #PasirRis. Free regular bus svcs from #BuonaVista to #Clementi. Our station staff will assist. - SMRT
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@sgmrt · Post #1982 · 03.07.2024 г., 22:39
[EWL] UPDATE: Due to a track fault, pls add 20mins train travel time from #BoonLay to #Clementi towards #PasirRis. Free regular bus svcs btwn #BoonLay and #Clementi. Passengers travelling towards city area, please and take North South Line towards #AngMoKio and #MarinaSouthPier. - SMRT
@sgmrt · Post #1981 · 03.07.2024 г., 22:34
[EWL]: UPDATE: Due to a track fault, pls add 20mins train travel time from #BoonLay to #Clementi towards #PasirRis. Free regular bus svcs from #BoonLay to #Clementi. Passengers travelling towards city area, please take North South Line towards #AngMoKio and #MarinaSouthPier. - SMRT
@sgmrt · Post #2293 · 04.04.2025 г., 05:34
[EWL]: Due to a track fault, please expect an additional 20mins of travelling time between #Queenstown and #BoonLay. Shuttle train are available between #Clementi and #JurongEast and #JurongEast and #Lakeside. Free regular bus is available between #BuonaVista and #BoonLay. - SMRT