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Изворен канал @pythonotes · Post #242 · 7 мај

Теперь запакуем строку. В этом случае следует передавать тип данных bytes. >>> struct.pack('=s', b'a') b'a' Для записи слова следует указывать количество символов. >>> struct.pack('=5s', b'hello') b'hello' Кстати, запакованный вид соответствует исходному тексту. Всё верно, символ есть в таблице ASCII, то есть его код попадает в диапазон 0-127, он может быть записан одним байтом и имеет визуальное представление. А вот что будет если добавить символ вне ASCII >>> struct.pack(f'=s', b'ё') SyntaxError: bytes can only contain ASCII literal characters. Ошибка возникла еще на этапе создания объекта bytes, который не может содержать такой символ. Поэтому надо кодировать эти байты из строки. >>> enc = 'ёжик'.encode('utf-8') >>> struct.pack(f'={len(enc)}s', enc) b'\xd1\x91\xd0\xb6\xd0\xb8\xd0\xba' Заметьте, длина такой строки в байтах отличается от исходной длины, так как символы вне ASCII записываются двумя байтами и более. Поэтому здесь формат создаём на лету, используя получившуюся длину как каунтер токена. #libs#basic

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Crypto M - Crypto News

@CryptoM · Post #65112 · 11.04.2026 г., 03:11

🚀 Middle East Conflict Influences Commodity Price Fluctuations, Citic Securities Reports Citic Securities has released a report indicating that since March 2026, conflicts in the Middle East have led to rotational movements in commodity prices. According to Jin10, there is a strong expectation for an increase in energy and chemical product prices, while some basic metals have experienced price adjustments due to concerns over global economic growth slowdown affecting demand. Looking ahead to the second quarter, the duration of the Middle East conflict may become a significant factor influencing commodity price volatility. If the conflict persists, the price logic observed since March is likely to strengthen further. Conversely, if the conflict ends, demand-side factors may dominate price changes across different commodities. Overall, Citic Securities remains optimistic about the performance of energy and chemical product prices in the second quarter. Additionally, attention is drawn to lithium carbonate and electrolytic aluminum, which are supported by supply disruptions and strong demand. #MiddleEastConflict#CommodityPrices#EnergyPrices#ChemicalProducts#Metals#EconomicGrowth#LithiumCarbonate#ElectrolyticAluminum#PriceVolatility#CiticSecurities

Crypto M - Crypto News

@CryptoM · Post #64786 · 09.04.2026 г., 23:42

🚀 Global Aluminum Supply-Demand Gap Projected to Persist Through 2027 On April 10, Jin10 reported that Huatai Securities has calculated the global supply-demand gap for primary aluminum to be -949,000 tons in 2026 and -389,000 tons in 2027. According to Jin10, this significant gap is attributed to the rigid changes in production due to the characteristics of electrolytic cell equipment, which have led to a decline in output. Even if the ongoing war ends swiftly, supply is unlikely to recover in the short term. On the demand side, previous market expectations were pessimistic due to high crude oil prices. Huatai Securities suggests that as concerns over the war ease, the upward elasticity of aluminum prices may be further realized. Investors are advised to focus on companies with overseas electrolytic aluminum production capacity, as they are likely to benefit directly from the substantial increase in overseas aluminum prices. #GlobalAluminum#SupplyDemandGap#PrimaryAluminum#ElectrolyticCell#AluminumProduction#AluminumPrices#InvestmentAdvice#OverseasProduction#AluminumMarket#CrudeOilPrices#HuataiSecurities#AluminumDemand#ElectrolyticAluminum