NEA Singapore
@NEASingapore · Post #756 · 06.02.2024 г., 01:01
Embrace the Lunar New Year with fresh air and festive cheer! Visit go.gov.sg/smoking-prohibition for the list of places where smoking is prohibited. #LunarNewYear2024
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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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NEA Singapore
@NEASingapore · Post #758 · 08.02.2024 г., 01:01
No spring cleaning is complete until you clear away all stagnant water. Let’s bring in good health and fortune, not mosquitoes. 🚫🦟 Check out more dengue prevention tips at go.gov.sg/dengue-checklist #BLOCKDengue#LunarNewYear2024
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NEA Singapore
@NEASingapore · Post #767 · 19.02.2024 г., 09:31
Litter can become potential mosquito breeding habitats. Let’s #KeepSGClean and mozzie-free by binning our litter properly! If a bin is full, hold on to your litter until you find a bin that you can use! #LunarNewYear2024
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NEA Singapore
@NEASingapore · Post #766 · 18.02.2024 г., 01:02
Better health, better wealth. Litter can become a breeding ground for germs and disease vectors. Let’s continue to bin our litter responsibly to #KeepSGClean. #LunarNewYear2024
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NEA Singapore
@NEASingapore · Post #765 · 17.02.2024 г., 01:02
List it, buy it, cook it right! A well-planned grocery list is your ticket to a waste-free reunion dinner this Lunar New Year. 🍲 #SayYEStoWasteLess#SustainableSG#TowardsZeroWaste#LunarNewYear2024
NEA Singapore
@NEASingapore · Post #764 · 16.02.2024 г., 01:01
#RecycleRight and start the new year right! Don’t forget to empty and rinse drink bottles and cans before recycling. Check out more recycling tips and FAQs at www.nea.gov.sg/3R #SustainableSG#TowardsZeroWaste#LunarNewYear2024
NEA Singapore
@NEASingapore · Post #762 · 12.02.2024 г., 01:02
From fried rice to stir-fried noodles, there are many yummy dishes that can be made from leftovers! Get creative in the kitchen, and turn your leftovers into tomorrow's feast. #SayYEStoWasteLess#SustainableSG#TowardsZeroWaste#LunarNewYear2024
NEA Singapore
@NEASingapore · Post #761 · 11.02.2024 г., 01:02
🍱✨ Let’s make the most of every bite! Enjoy your festive favourites again, by packing up leftovers and storing them properly. #SayYEStoWasteLess#SustainableSG#TowardsZeroWaste#LunarNewYear2024
NEA Singapore
@NEASingapore · Post #757 · 07.02.2024 г., 01:02
Make recycling a part of your family’s routine! Simply set up your recycling bin next to your waste bin, to encourage everyone at home to #RecycleRight. More recycling tips and FAQs at www.nea.gov.sg/3R #SustainableSG#TowardsZeroWaste#LunarNewYear2024
NEA Singapore
@NEASingapore · Post #754 · 04.02.2024 г., 01:01
As we approach the Year of the Dragon, let’s breathe new life into our old tech! Recycle your e-waste to recover precious materials that can be used to make new products. More info at go.gov.sg/e-waste #RecycleRight#SustainableSG#TowardsZeroWaste#LunarNewYear2024
NEA Singapore
@NEASingapore · Post #750 · 01.02.2024 г., 01:05
Are the expiration dates on your condiments and other canned & bottled goods looming? Check your pantry and use up your goods before they expire. Let’s have a sustainable celebration this Lunar New Year! #SayYEStoWasteLess#SustainableSG#TowardsZeroWaste#LunarNewYear2024
NEA Singapore
@NEASingapore · Post #753 · 03.02.2024 г., 01:02
Remember to bring your reusable bags when you’re heading out to buy New Year goodies. This way, you’ll save money while saving the environment. Cheers to a clean, green and prosperous new year. 🧧 #BYOB#SustainableSG#TowardsZeroWaste#LunarNewYear2024