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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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AI match predictions

@ai_match_prediction · Post #11641 · 21.04.2026 г., 09:05

Russia Premier League🇷🇺 2026-04-21 14:30 UTC FC Sochi vs. Krylia Sovetov Predicted outcome: Draw❌ Predicted score: 1:1 Actual: FC Sochi 2:1 #FCSochi#KryliaSovetov 2026-04-21 16:45 UTC CSKA Moscow vs. FC Rostov Predicted outcome: Draw✅ Predicted score: 1:1 Actual: Draw 1:1 #CSKA#Rostov #Football#RussiaPremierLeague

AI match predictions

@ai_match_prediction · Post #11876 · 03.05.2026 г., 05:05

Russia Premier League🇷🇺 2026-05-03 11:30 UTC FC Sochi vs. FC Orenburg Predicted outcome: FC Orenburg❌ Predicted score: 1:2 Actual: FC Sochi 3:1 #FCSochi#Orenburg 2026-05-03 14:00 UTC Akron vs. FC Krasnodar Predicted outcome: FC Krasnodar✅ Predicted score: 1:2 Actual: FC Krasnodar 0:1 #Akron#Krasnodar 2026-05-03 16:30 UTC Akhmat vs. Nizhny Novgorod Predicted outcome: Akhmat✅ Predicted score: 2:1 Actual: Akhmat 2:0 #Akhmat#NizhnyNovgorod #Football#RussiaPremierLeague

AI match predictions

@ai_match_prediction · Post #12007 · 10.05.2026 г., 05:05

Russia Premier League🇷🇺 2026-05-10 09:30 UTC FC Orenburg vs. Krylia Sovetov Predicted outcome: FC Orenburg✅ Predicted score: 2:1 Actual: FC Orenburg 1:0 #Orenburg#KryliaSovetov 2026-05-10 12:00 UTC Zenit vs. FC Sochi Predicted outcome: Zenit✅ Predicted score: 3:0 Actual: Zenit 2:1 #Zenit#FCSochi 2026-05-10 14:15 UTC Akhmat vs. Dinamo Makhachkala Predicted outcome: Akhmat❌ Predicted score: 2:1 Actual: Draw 1:1 #Akhmat#DinamoMakhachkala 2026-05-10 16:30 UTC Lokomotiv vs. Baltika Predicted outcome: Baltika❌ Predicted score: 1:2 Actual: Lokomotiv 1:0 #Lokomotiv#Baltika #Football#RussiaPremierLeague

AI match predictions

@ai_match_prediction · Post #11751 · 26.04.2026 г., 09:05

Russia Premier League🇷🇺 2026-04-26 11:00 UTC Nizhny Novgorod vs. Spartak Moscow Predicted outcome: Spartak Moscow✅ Predicted score: 1:2 Actual: Spartak Moscow 1:2 #NizhnyNovgorod#SpartakMoscow 2026-04-26 14:00 UTC FC Krasnodar vs. Dinamo Makhachkala Predicted outcome: FC Krasnodar✅ Predicted score: 3:0 Actual: FC Krasnodar 2:1 #Krasnodar#DinamoMakhachkala 2026-04-26 14:00 UTC Dynamo vs. FC Sochi Predicted outcome: Dynamo✅ Predicted score: 3:1 Actual: Dynamo 2:0 #DynamoMoscow#FCSochi 2026-04-26 16:30 UTC Zenit vs. Akhmat Predicted outcome: Zenit✅ Predicted score: 2:0 Actual: Zenit 2:0 #Zenit#Akhmat #Football#RussiaPremierLeague

AI match predictions

@ai_match_prediction · Post #11457 · 12.04.2026 г., 05:05

Russia Premier League🇷🇺 2026-04-12 11:00 UTC CSKA Moscow vs. FC Sochi Predicted outcome: CSKA Moscow❌ Predicted score: 3:1 Actual: FC Sochi 0:1 #CSKA#FCSochi 2026-04-12 13:30 UTC Lokomotiv vs. Dinamo Makhachkala Predicted outcome: Lokomotiv❌ Predicted score: 3:1 Actual: Draw 1:1 #Lokomotiv#DinamoMakhachkala 2026-04-12 13:30 UTC FC Rostov vs. Spartak Moscow Predicted outcome: Draw✅ Predicted score: 1:1 Actual: Draw 1:1 #Rostov#SpartakMoscow 2026-04-12 16:30 UTC Zenit vs. FC Krasnodar Predicted outcome: Zenit❌ Predicted score: 1:0 Actual: Draw 1:1 #Zenit#Krasnodar #Football#RussiaPremierLeague

AI match predictions

@ai_match_prediction · Post #11115 · 21.03.2026 г., 05:05

Russia Premier League🇷🇺 2026-03-21 10:45 UTC Akhmat vs. FC Rostov Predicted outcome: Draw❌ Predicted score: 1:1 Actual: Akhmat 1:0 #Akhmat#Rostov 2026-03-21 13:00 UTC CSKA Moscow vs. Dinamo Makhachkala Predicted outcome: CSKA Moscow✅ Predicted score: 2:0 Actual: CSKA Moscow 3:1 #CSKA#DinamoMakhachkala 2026-03-21 15:15 UTC FC Krasnodar vs. Nizhny Novgorod Predicted outcome: FC Krasnodar✅ Predicted score: 2:0 Actual: FC Krasnodar 5:0 #Krasnodar#NizhnyNovgorod 2026-03-21 17:30 UTC Baltika vs. FC Sochi Predicted outcome: Baltika✅ Predicted score: 2:0 Actual: Baltika 4:0 #Baltika#FCSochi #Football#RussiaPremierLeague