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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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Walken.io - Announcement

@walken_channel · Post #18 · 19.01.2022 г., 11:45

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Hi there! 😃 We’ve been wondering how keen you are on walking 👟- maybe you have a job that keeps you on your feet, or walking happened to be your favourite pastime? 🐾 In Walken, the more you walk, the higher 📈 your step count is - the more in-game Gems 💎you’ll get! Given that 1ksteps = 1 gem , how many Gems 💎 would you get per day (on average) today? A quick reminder: the app is not available yet, and we’re doing our best to bring it live as soon as possible! Initial DEX offering (IDO) is coming late Feb, will do our best to start a beta before that. There will be both iOS and Android version, so no worries! * We’ll be keeping you updated here and on Twitter, so stay tuned 📻 and we’ll let you know when you’ll be able to join the beta test and get your CAThlete! 🐦 twitter: https://twitter.com/walken_io 🧨 medium: https://medium.com/@walken.io 🕹️ discord: https://discord.gg/QJDnFt6S4J #nft#walken#walkandearn#NFTGaming#blockchaingame

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Walken.io - Announcement

@walken_channel · Post #6 · 23.11.2021 г., 14:37

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Welcome to our news channel! 👋 WALKEN is a new NFT game that converts your steps 🚶in real life into tokens 🎮. Comming really soon! ⚡ Join to stay up to date about release news, promo drops and development updates 🐨 🐦 twitter: https://twitter.com/walken_io 🧨 medium https://medium.com/@walken.io 🕹️ discord https://discord.gg/S2GvpU24 #nft#walken#walkandearn#NFTGaming#blockchaingame

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Walken.io - Announcement

@walken_channel · Post #7 · 23.11.2021 г., 14:38

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📢 BETA TEST is coming soon! We know you're itching to have a go and acquire your first CAThlete 🐷 Great news: gameplay development is progressing, and we're preparing a 💥playable beta💥! We are grateful for your patience and will announce the start of beta testing in advance⏰ Stay tuned and don't miss out on the fun! 🐦 twitter: https://twitter.com/walken_io 🧨 medium https://medium.com/@walken.io 🕹️ discord https://discord.gg/QJDnFt6S4J #nft#walken#walkandearn#NFTGaming#blockchaingame#betatest#betatester

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