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Изворен канал @pythonotes · Post #397 · 12 ное.

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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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SingSing Announcement

@singsingchannel · Post #902 · 16.10.2024 г., 10:39

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🔥 Tycoon Master Showdown Event: Are you in? 🔥 Have you joined the Showdown yet? Make sure to become one of our Tycoon Masters and fully understand how this event works! 🤩Ready to claim your spot as a Tycoon Master? Let’s break it down: 1️⃣ Event format: Short and sweet, split into multiple sessions. 2️⃣ Session duration: Each session has its own timeframe ⏳. After it ends, the leaderboard locks in your rank, but don’t worry—your earnings are safe and sound! 💰 3️⃣ Leaderboard placement: Your building level decides where you land. 4️⃣ Rankings in each Leaderboard: Earn the top spots by stacking up that Cash Earning! 💸 This means if you missed out a session ➡️ No stress—every round is a fresh chance to rise! 🚀 #TycoonMaster#SingSingShowdown 🎤Announcement | Chat | X (Twitter) | Website | Game

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SingSing Announcement

@singsingchannel · Post #922 · 23.10.2024 г., 10:37

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⏰ Just a few hours left until Tycoon Master Showdown #2 goes live! 🎤 Are you ready to dominate the leaderboard? 🏆 🗓 Duration: 14:00 UTC Oct 23 - 13:59 UTC Oct 30 Check out the Prize Breakdown across our 5 Leaderboards: 1️⃣MegaBusiness: 100K $KARA 🥇 Top 1: 2 Legendary Karaoke Box NFTs + 10.5 TON 🥈 Top 2: 1 Legendary Karaoke Box NFT + 4.5 TON 🥉 Top 3-10: 1 Epic Karaoke Box NFT each 2️⃣IndustryLeaders: 50K $KARA 🥇 Top 1: 2 Epic Karaoke Box NFTs + 6.3 TON 🥈 Top 2: 1 Epic Karaoke Box NFT + 2.7 TON 🥉 Top 3-10: 1 Rare Karaoke Box NFT each 3️⃣Successful Business: 30K $KARA 🥇 Top 1: 2 Rare Karaoke Box NFTs + 4.2 TON 🥈 Top 2: 1 Rare Karaoke Box NFT + 1.8 TON 🥉 Top 3-10: 1 Uncommon Karaoke Box NFT each 4️⃣Mid-level Entrepreneurs: 20K $KARA 🥇 Top 1: 2 Uncommon Karaoke Box NFTs 🥈 Top 2: 1 Uncommon Karaoke Box NFT 🥉 Top 3-10: 1 Common Karaoke Box NFT each 5️⃣Small Business: 10K $KARA #SingSingTycoon#KaraokeKing#TycoonMaster 🎤Announcement | Chat | X (Twitter) | Website | Game

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SingSing Announcement

@singsingchannel · Post #898 · 14.10.2024 г., 15:57

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🎤 Tycoon Master Showdown #1 is Coming Tomorrow! 🏢 🗓 Duration: 14:00 UTC Oct 15 - 13:59 UTC Oct 22 Check out the Prize Breakdown across our 5 Leaderboards: 1️⃣MegaBusiness: 100K $KARA 🥇 Top 1: 2 Legendary Karaoke Box NFTs + 7 TON 🥈 Top 2: 1 Legendary Karaoke Box NFT + 3 TON 🥉 Top 3-10: 1 Epic Karaoke Box NFT each 2️⃣IndustryLeaders: 50K $KARA 🥇 Top 1: 2 Epic Karaoke Box NFTs + 4.2 TON 🥈 Top 2: 1 Epic Karaoke Box NFT + 1.8 TON 🥉 Top 3-10: 1 Rare Karaoke Box NFT each 3️⃣Successful Business: 30K $KARA 🥇 Top 1: 2 Rare Karaoke Box NFTs + 2.8 TON 🥈 Top 2: 1 Rare Karaoke Box NFT + 1.2 TON 🥉 Top 3-10: 1 Uncommon Karaoke Box NFT each 4️⃣Mid-level Entrepreneurs: 20K $KARA 🥇 Top 1: 2 Uncommon Karaoke Box NFTs 🥈 Top 2: 1 Uncommon Karaoke Box NFT 🥉 Top 3-10: 1 Common Karaoke Box NFT each 5️⃣Small Business: 10K $KARA Let the competition begin! 🎯 #SingSingTycoon#KaraokeKing#TycoonMaster 🎤Announcement | Chat | X (Twitter) | Website | Game

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SingSing Announcement

@singsingchannel · Post #904 · 16.10.2024 г., 14:10

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🚨 Leaderboard Update: Tycoon Master Showdown 🚨 The leaderboard is heating up as players race for those top spots! 💰 Who's ready to claim their share of $KARA and those sweet NFT + TON bonuses? 🎁 There’s still time to make your move, so don’t let up! 🏆 👀 Oh, and did we mention a big airdrop is coming soon? Keep those eyes peeled—something massive is on the horizon! 🌟 #TycoonMaster#AirdropAlert#KARA#NFT#SingSingShowdown 🎤Announcement | Chat | X (Twitter) | Website | Game

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#tycoonmaster#airdropalert#kara#nft#singsingshowdown