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: #disaster
@amazingeo · Post #28 · 10.08.2025 г., 14:31
🌍 In 1815, Indonesia’s Mount Tambora erupted so violently that it triggered “the year without a summer.” Global temperatures dropped, causing crop failures and food shortages across continents. ✨ #disaster⚡#volcano⚡#climate⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #320 · 01.10.2025 г., 18:31
🌍 In 2015, Chile’s Calbuco volcano erupted after 43 years of silence, blasting ash over 15 kilometers high. Its sudden activity disrupted air travel and blanketed towns in thick volcanic dust. ✨ #volcano⚡#disaster⚡#eruption⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #166 · 03.09.2025 г., 03:12
🌍 In 2023, Cyclone Freddy became the longest-lasting tropical cyclone ever recorded, traveling over 12,000 kilometers and affecting countries from Madagascar to Mozambique with powerful winds and rain. ✨ #cyclone⚡#disaster⚡#weather⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography🌍
@amazingeo · Post #473 · 24.11.2025 г., 12:31
🌍 In 2023, Cyclone Mocha became one of the strongest storms ever recorded in the North Indian Ocean, with winds over 250 km/h, causing severe flooding and reshaping coastal landscapes. ✨ #disaster⚡#cyclone⚡#flooding⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #581 · 19.01.2026 г., 20:31
🌍 In 2023, Cyclone Biparjoy spun over the Arabian Sea for nearly two weeks—a rare “very severe cyclonic storm” to last so long in this region, with winds impacting coasts over 1,000 kilometers apart. ✨ #cyclone⚡#disaster⚡#winds⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@amazingeo · Post #359 · 11.10.2025 г., 15:31
🌍 The 1811–1812 New Madrid earthquakes in the central United States were so powerful they briefly made the Mississippi River flow backward, reshaping the landscape far from any plate boundary. ✨ #disaster⚡#earthquake⚡#river⚡#geography⚡#nature⚡#earth 👉subscribe Amazing Geography 👉more Channels
@googlefactss · Post #40976 · 25.04.2026 г., 22:01
On 26 April 1986, the Chernobyl disaster occurred at the Chernobyl Nuclear Power Plant in the Soviet Union (now Ukraine). During a safety test on Reactor 4, operators lost control of the reactor. This caused a powerful explosion and fire that destroyed the reactor and released large amounts of radioactive material into the atmosphere. It is considered the worst nuclear accident in history. The nearby city of Pripyat was evacuated after the explosion. The area is mostly uninhabited, but a small number of people still live or work there. ☢️🏭🌍 [Read more 1] [Read more 2] @googlefactss #Chernobyl#NuclearAccident#History#Ukraine#Disaster If you have ideas or feedback contact us: @Googlefactss_Feedback_bot