TGINSIGHT SIMILAR POSTS
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: #hawkerheritage
@NEASingapore · Post #841 · 15.06.2024 г., 01:01
#HawkerHeritage📢 Originally the Seng Poh Road Market in 1951, Tiong Bahru Market served as a bustling centre for the community. Next time you’re there for a meal, don’t forget to soak up the history & nostalgia! #OurHawkerCulture#OurHawkerCentres
@NEASingapore · Post #832 · 30.05.2024 г., 01:03
#HawkerHeritage Fancy A Feast in a Garden 🌴? Since 1971, Newton Food Centre hawker has been serving up Singapore’s culinary diversity with its unique 'garden city' charm. Forward this post to someone who’ll appreciate this picturesque setting! #OurHawkerCulture#OurHawkerCentres#HawkerHeritage
@NEASingapore · Post #830 · 24.05.2024 г., 01:01
#HawkerHeritage📜 Tekka Centre: Let’s time-travel back to 1915, where 'Kandang Kerbau' and ‘Tekka’ tell tales of cattle and wild bamboo. What a journey for the senses! #OurHawkerCulture#OurHawkerCentres
@NEASingapore · Post #826 · 17.05.2024 г., 01:01
#HawkerHeritage🌟 People’s Park Food Centre: A Culinary Heritage Site 🌟 Starting as a hawker shelter in 1923 and evolving into the largest market by 1940, it's a place where history and cuisine meet. Share this with someone that you’ll like to explore this iconic food haven with! #OurHawkerCulture#OurHawkerCentres
@NEASingapore · Post #823 · 09.05.2024 г., 01:00
#HawkerHeritage🍲✨ Experience a rich blend of history and culinary excellence at Singapore's largest hawker centre: Chinatown Complex Market! Established in 1981 for the last of Chinatown’s street hawkers, it's now a vibrant gastronomic haven with around 700 stalls. Share this with your favourite foodies! #OurHawkerCulture#OurHawkerCentres
@NEASingapore · Post #834 · 06.06.2024 г., 01:01
#HawkerHeritage Changi Village Hawker Centre: From a military past to a seaside food haunt 🌴#DidYouKnow This dining spot was part of Changi's transformation into a resort? An idyllic memory to savour with your favourite hawker delights! #OurHawkerCulture#OurHawkerCentres
@NEASingapore · Post #815 · 26.04.2024 г., 02:13
#HawkerHeritage Architectural elegance meets culinary delight at Old Airport Road Food Centre 🍴🏛️#DidYouKnow that its modern structure was designed in '73 to match the housing estates in the area? #OurHawkerCulture#OurHawkerCentres
@NEASingapore · Post #812 · 19.04.2024 г., 01:02
#HawkerHeritage#DidYouKnow Adam Road Food Centre is nine-sided and almost circular? This popular spot is famous for its nasi lemak and a variety of delightful treats! This is your sign to organise that makan trip🍴 #OurHawkerCulture#OurHawkerCentres
@NEASingapore · Post #808 · 08.04.2024 г., 04:03
❤️#HawkerHeritage❤️#DidYouKnow that Maxwell Food Centre was once a wet market? It was also one of the places where the poor and displaced could find cheap meals after WWII. Today, it’s a treasure trove of local delights! #OurHawkerCulture#OurHawkerCentres