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Изворен канал @pythonotes · Post #156 · 2 окт.

Те, кто в Python не первый день, хорошо знают, что на число можно умножить не только число, но и другие типы. Главное, чтобы у этих типов была реализация такой операции. # list >>> [1] * 3 [1, 1, 1] # tuple >>> (2, 3) * 3 (2, 3, 2, 3, 2, 3) # string >>> "A" * 3 "AAA" Так работает полиморфизм стандартных типов. Интересно здесь то, что это сработает и в том случае, когда порядок операндов обратный. То есть int умножить на [тип]. # list >>> 3 * [1] [1, 1, 1] # tuple >>> 3 * (2, 3) (2, 3, 2, 3, 2, 3) # string >>> 3 * "A" "AAA" Если хотите реализовать такое поведение в ваших классах то следует помнить два момента: 1. Если множитель справа, то вам нужно реализовать метод __mul__, наш класс это первый операнд, то есть слева. myType * 3 2. Если множитель слева, то вам нужно реализовать метод __rmul__, наш класс это второй операнд, справа. 3* myType Всё тоже самое можно делать и для других математических операторов. И если в этом примере действие и результат будут фактически одинаковыми, то бывают ситуации, когда это не так. Например, при умножении матриц имеет значение порядок операндов. Для других операторов, таких как деление или сдвиг, очень важно кто с какой стороны находится. >>> 2/4, 4/2 (0.5, 2.0) >>> 2<<3, 3<<2 (16, 12) >>> 100%15, 15%100 (10, 15) #tricks#basic

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Venture Village Wall 🦄

@venturevillagewall · Post #3672 · 21.12.2024 г., 18:50

Sheldon Schiff Proposes USAcoin Peter Schiff advocates replacing Bitcoin as a strategic US reserve with a new crypto asset, USAcoin, featuring a limited supply of 21 million coins and an improved blockchain for better payment capability. He highlights this shift as a pathway to wealth, contrasting his views on Bitcoin, which he refers to as digital gold. Schiff also generated an image with Elon Musk and Donald Trump against a Bitcoin backdrop, criticizing ChatGPT for its content restrictions. _"HODL to the Moon, America!"_ #PeterSchiff#USAcoin#Crypto#Bitcoin#Blockchain#Investment#DigitalGold#Wealth#PaymentSystems#Grok

Crypto M - Crypto News

@CryptoM · Post #65365 · 13.04.2026 г., 02:44

🚀 Hong Kong's Cautious Approach to Digital Asset Licensing Hong Kong's Financial Secretary, Paul Chan, has outlined a cautious strategy for issuing digital asset licenses. According to Foresight News, Chan emphasized a 'small steps, quick progress' approach, initially granting a limited number of licenses. The focus is on practical application scenarios, with plans to evaluate experiences before issuing a second batch. Chan highlighted that stablecoins and digital assets represent financial innovation, requiring encouragement for breakthroughs. However, he stressed the importance of maintaining security and implementing mechanisms to prevent money laundering, necessitating appropriate regulation. While stablecoins offer benefits such as decentralization and high efficiency, Chan noted they should be viewed as payment tools rather than investment instruments. #HongKong#DigitalAssets#FinTech#Stablecoins#FinancialRegulation#CryptoLicensing#Innovation#AML#PaymentSystems

Venture Village Wall 🦄

@venturevillagewall · Post #4295 · 03.03.2025 г., 13:00

Trump Announces National Crypto Reserve 🇺🇸 President Trump announces plans for a U.S. national crypto reserve, including assets like XRP, SOL, and ADA. He established a presidential working group to strategize this reserve. The announcement has sparked controversy, with accusations of insider trading and mixed opinions on asset choice. Bitcoin and Ethereum will also play significant roles in the reserve. Read more details here. #Crypto#XRP#Bitcoin#Ethereum#SOL#ADA#US#Reserve#InsiderTrading#Blockchain#Trump#Finance#Investments#VC#Regulation#DigitalAssets#Stablecoins#PaymentSystems

Venture Village Wall 🦄

@venturevillagewall · Post #3669 · 21.12.2024 г., 13:51

USAcoin Proposal by Peter Schiff Peter Schiff suggests that instead of building a strategic reserve in BTC, the U.S. could save money by launching a new cryptocurrency called USAcoin, which would have a capped supply of 21 million coins, utilizing updated blockchain technology for payment efficiency. He emphasizes the potential wealth this could generate and encourages HODL. 🔗Read more here🔗Join Crypto Twitter #USAcoin#Cryptocurrency#BTC#Blockchain#PaymentSystems#Investment#WealthBuilding#HODL#Crypto#Finance#PeterSchiff#CryptoTwitter#DigitalCurrency