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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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BLC Market - mini-app BulCoin

@bulcoin_blc · Post #338 · 16.04.2026 г., 10:00

Now is the best time to enter BLC Market. Early stage project: - actively forming structure - interfaces are being published - new mechanics are opening up If you're already here - you're getting in ahead of most. Scaling will follow next. #community#referrals FAQ | BUY

🏆 Premium, NFT, Tokens

@Giiveaways · Post #2171 · 18.06.2024 г., 16:00

👥 The system of inviting friends to CITY Holder! 🏠🐹 With the invitation system you get in-game income not only for inviting friends, but also for their further development! The better your buddy's results, the higher your income. Combine strategies and show incredible results! #CITYHolder#Referrals https://t.me/cityholder🆕👈 °°°°°°

BLC Market - mini-app BulCoin

@bulcoin_blc · Post #278 · 07.03.2026 г., 12:00

Launching the BulCoin Referral Program We are starting a referral program for the early BulCoin community. Now every participant can invite friends to the project and receive additional bonuses. How it works: Invite your friends to the BulCoin channel Ask them to mention your username in the comments to this post Bonuses BLC are credited for invitations Rewards: • 3 invited — You join the private Pioneers chat • 10 invited — Bonus of 500,000 BLC • 25 invited — 3mln BLC + Participation in the BulCoin operational staff We will regularly publish the leaderboard — participants who have invited the most people. The best participants can receive additional rewards and a special status in the community. This is just the beginning of the formation of the BulCoin Early Community Invite your friends and help build the BulCoin community #Pioneers#Referrals FAQ | BUY

BLC Market - mini-app BulCoin

@bulcoin_blc · Post #336 · 12.04.2026 г., 10:00

Invitation mechanics in BLC Market There will be a separate section in the app through which you can invite new users. This will allow: — community to grow faster — build connections between members — increase activity within the platform We will show the interface in the upcoming updates. #profile#community#referrals FAQ | BUY

SingSing Announcement

@singsingchannel · Post #935 · 27.10.2024 г., 06:52

🎉 Invite Reward Boost! 🎉 Invite friends to join SingSing and earn 20 $KARA FREE for each successful invite (up from 10 $KARA)! 🔥 👥 The more, the merrier – stack up your $KARA effortlessly! 💸 Start inviting now and claim your rewards! #SingSing#KARA#Invite#Referrals 🎤Announcement | Chat | X (Twitter) | Website | Game