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: #disappearance
@interesting_planet_facts · Post #786 · 20.09.2025 г., 12:11
🌎 The disappearance of the Sodder children in 1945 remains unsolved. Five siblings vanished after a house fire in Fayetteville, West Virginia. Investigators found no remains in the ash, and sightings were later reported but never verified. A billboard seeking answers stood along Route 16 for decades. ✨ #history⚡#disappearance⚡#mystery 👉subscribe Interesting Planet
Hashtags
@interesting_planet_facts · Post #991 · 31.10.2025 г., 12:11
🌎 In 2009, French aircraft Air France Flight 447 disappeared over the Atlantic during a flight from Rio de Janeiro to Paris. All 228 people on board died. The plane's wreckage was not found for nearly two years, when deep-sea searches located the main debris field at a depth of 3,900 meters. ✨ #aviation⚡#disappearance⚡#ocean 👉subscribe Interesting Planet 👉more Channels
Hashtags
@interesting_planet_facts · Post #720 · 10.09.2025 г., 00:22
🌎 In 1815, the British brig HMS Rosalie was found abandoned and drifting near the Bahamas. The ship’s sails were set, and cargo untouched, but not a single crew member was found onboard. Official records note that the ship’s logbook and personal belongings were still present when discovered. ✨ #disappearance⚡#maritime⚡#mystery 👉subscribe Interesting Planet
Hashtags
@interesting_planet_facts · Post #884 · 09.10.2025 г., 20:11
🌎 In 1973, Australian pilot Frederick Valentich disappeared while flying a Cessna 182L over Bass Strait. During radio contact, he reported a strange, unidentified craft circling his plane before transmission was lost. Despite a large search, neither Valentich nor his aircraft were ever found. ✨ #disappearance⚡#aviation⚡#australia 👉subscribe Interesting Planet 👉more Channels
@interesting_planet_facts · Post #657 · 30.08.2025 г., 16:22
🌎 In 1872, the Mary Celeste was found adrift in the Atlantic Ocean—its crew vanished without a trace, leaving food, cargo, and the ship untouched. This unsolved maritime mystery has puzzled historians ever since. ✨ #disappearance⚡#ship⚡#mystery 👉subscribe Interesting Planet
Hashtags
@interesting_planet_facts · Post #1315 · 25.02.2026 г., 12:11
🌎 In 1925, British explorer Percy Fawcett vanished in Brazil's Amazon rainforest while searching for the lost city of "Z." Fawcett, his son, and a companion were last seen near the Upper Xingu River. Despite dozens of rescue missions over decades, no confirmed trace of the expedition was ever found. ✨ #amazon⚡#disappearance⚡#exploration 👉subscribe Interesting Planet 👉more Channels