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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: #warupdates
@badvolfnews · Post #1230 · 05.11.2023 г., 10:25
📢 Russian military spokesperson claims victory over Ukrainian forces on the Southern Donetsk front. Enemy rotation disrupted, personnel and equipment destroyed. Counter-battery strikes hit enemy positions. Significant losses reported. The conflict in Ukraine remains unresolved. #WarUpdates https://www.gazeta.ru/army/news/2023/11/05/21644377.shtml Subscribe to @BadVolfNews
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@badvolfnews · Post #1212 · 02.11.2023 г., 11:25
📢 Russian forces strike Ukrainian military targets! Over 160 hits on Krasnolimansk direction. Artillery units neutralized, assault squads defeated. Support from air and artillery. Command and observation posts attacked. New tactics observed by Ukrainian forces. #WarUpdates https://www.gazeta.ru/army/news/2023/11/02/21625465.shtml Subscribe to @BadVolfNews
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@badvolfnews · Post #1201 · 01.11.2023 г., 16:25
📣 Russian troops seize Ukrainian stronghold near Ugledar in Donetsk People's Republic. 10 enemy soldiers caught off guard, 4 taken captive. Clever tactics employed, with one group approaching from the front and another from the rear. Victory for Russian forces! 💪🇷🇺#WarUpdates https://www.gazeta.ru/army/news/2023/11/01/21617965.shtml Subscribe to @BadVolfNews
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@badvolfnews · Post #1182 · 28.10.2023 г., 22:25
📢 Russian forces gaining ground, Ukraine struggling to hold on. White House speculates Russia will secure tactical victories, cementing their dominance by spring. Crisis of conscription and dwindling weapon supplies weaken Ukraine's chances. Advisor warns Ukraine may not last till spring. Russian military holds the offensive initiative, pushing forward with success. Ukrainian strongholds predicted to fall, leading to a domino effect as the enemy flees. Official admits futility of fighting, claims US and Europe have abandoned Ukraine. US identifies major threats to Ukrainian Armed Forces. #WarUpdates#Ukraine#Russia https://www.gazeta.ru/army/news/2023/10/28/21595081.shtml Subscribe to @BadVolfNews
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@WorldNews · Post #73640 · 27.03.2026 г., 11:29
Ukraine’s paratroopers clear Berezove in Dnipropetrovsk Oblast, completing near-total reversal of Russia’s 2025 gains in the region [Read FullArticle] @WorldNews#UkraineNews#WarUpdates#DnipropetrovskIf
@Marwa_OsmanLB · Post #3552 · 26.10.2024 г., 18:20
@syrianaanalysis breaks down Israel's strikes on Syria with Red Pilled, exploring how regional tensions are escalating and what it means for the axis of resistance. #Israel#Syria#Hezbollah#MiddleEast#Gaza#WarUpdates#PoliticalAnalysis