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Изворен канал @pythonotes · Post #83 · 11 мај
У строки в Python есть два очень похожих метода. На столько похожих что кажется они делают одно и тоже. Это метод isdigit() и isnumeric() Давайте посмотрим зачем нам два одинаковых метода? И так ли они одинаковы? Очевидно что isdigit() говорит нам, состоит ли строка только из чисел 0-9 >>> '12'.isdigit() True >>> '12x'.isdigit() False >>> '-12'.isdigit() False >>> '12.5'.isdigit() False Можно предположить что isnumeric() делает более глубокий анализ и распознаёт в строке float или отрицательное число. >>> '15'.isnumeric() True >>> '-15'.isnumeric() False >>> '15.2'.isnumeric() False Нет, всё так же как и с другим методом. В чем же тогда разница? Для начала посмотрим следующие примеры: >>> '5'.isdigit(), '5'.isnumeric() # Обычная цифра 5 # True, True >>> '꧕'.isdigit(), '꧕'.isnumeric() # Яванская 5 # True, True >>> '෩'.isdigit(), '෩'.isnumeric() # Синхала 3 # True, True >>> '৩'.isdigit(), '৩'.isnumeric() # Бенгальская 3 # True, True >>> '༣'.isdigit(), '༣'.isnumeric() # Тибетская 3 # True, True >>> '³'.isdigit(), '³'.isnumeric() # 3 верхний индекс (степень) # True, True >>> '𝟝'.isdigit(), '𝟝'.isnumeric() # Математическая двойная 5 # True, True >>> '๔'.isdigit(), '๔'.isnumeric() # Тайская 4 # True, True >>> '➑'.isdigit(), '➑'.isnumeric() # 8 в круге # True, True А теперь примеры в которых, по мнению Python, результаты не равны >>> '¾'.isdigit(), '¾'.isnumeric() # дробь три четверти # False, True >>> '⅕'.isdigit(), '⅕'.isnumeric() # дробь одна пятая # False, True >>> '𒐶'.isdigit(), '𒐶'.isnumeric() # клинопись 3 # False, True >>> '三'.isdigit(), '三'.isnumeric() # 3 из унифицированной идеограммы # False, True >>> '⑩'.isdigit(), '⑩'.isnumeric() # цифра 10 в круге # False, True >>> 'Ⅳ'.isdigit(), 'Ⅳ'.isnumeric() # Римская 4 # False, True >>> '𑇪'.isdigit(), '𑇪'.isnumeric() # Сенегальская архаическая 10 # False, True >>> '𐌢'.isdigit(), '𐌢'.isnumeric() # Этрусская цифра 10 # False, True >>> 'ↂ'.isdigit(), 'ↂ'.isnumeric() # Римская цифра 10000 # False, True >>> '〇'.isdigit(), '〇'.isnumeric() # Символ ККЯ ноль # False, True Получается, что isdigit() говорит нам, является ли символ десятичной цифрой или спецсимволом, имеющим цифирное значение после преобразования. В свою очередь isnumeric() включает все дополнительные символы юникода которые имеют отношения к числовым и цифровым представлениям. Ну и пара примеров в которых в обоих случаях символ не является числом, это эмодзи. >>> '🕙'.isdigit(), '🕙'.isnumeric() # эмодзи 10 часов # False, False >>> '7️⃣'.isdigit(), '7️⃣'.isnumeric() # эмодзи 7 # False, False Также есть еще один дополнительный и весьма полезный метод isdecimal(). Он нам сообщает, можно ли из указанного символа сделать простую десятичную цифру. То есть сработает ли метод int(x) >>> '෩'.isdecimal(), int('෩') # Синхала 3 # True, 3 >>> '➑'.isdecimal(), int('➑') # 8 в круге # False, ValueError Какие выводы? 🔸 При определении цифры в строке isdigit() подходит лучше чем isnumeric(), но оба не гарантируют успешную конвертацию в int 🔸 Для однозначного определения возможности преобразования строки в int лучше подходит метод isdecimal() 🔸 Для однозначного определения символов 0...9 лучше использовать regex Полный список символов юникода которые определяются как numeric #basic
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@CryptoM · Post #65232 · 12.04.2026 г., 06:43
🚀 RAVE Surges Over 40% Before Settling at $2.40 RAVE experienced a significant price increase, surging over 40% to reach $2.97, according to NS3.AI. The cryptocurrency later adjusted to a trading price of $2.40. #RAVE#cryptocurrency#priceincrease#NS3AI#surge#trading
@CryptoM · Post #64860 · 10.04.2026 г., 05:07
🚀 XRP Rises to $1.35 Amid Strong Trading Volume XRP experienced a price increase, reaching $1.35 after surpassing the $1.34 mark on strong trading volume. According to NS3.AI, the upward movement paused below $1.36, and XRP continues to be part of a broader downtrend. There is no clear catalyst identified for this recovery. #XRP#cryptocurrency#tradingvolume#priceincrease#downtrend#NS3AI
@CryptoM · Post #65311 · 12.04.2026 г., 20:44
🚀 RAVE Surges Over 130% in Intraday Trading RAVE experienced a significant surge in intraday trading, climbing above $5 before settling at $4.93. According to NS3.AI, market data indicated that the token remained up by more than 130% for the day. #RAVE#IntradayTrading#Surge#MarketData#NS3AI#Token
@CryptoM · Post #65416 · 13.04.2026 г., 06:17
🚀 Bitcoin Needs to Surpass $76,000 to Reverse Downtrend Bitcoin's recent performance indicates a need to break above $76,000 with significant trading volume to counteract its six-month downtrend. According to NS3.AI, the cryptocurrency rebounded from approximately $60,000 in early February, climbing above $75,000 before encountering resistance at its downtrend line. #Bitcoin#cryptocurrency#downtrend#NS3AI#tradingvolume#marketresistance#cryptomarket#BTC
@CryptoM · Post #64888 · 10.04.2026 г., 07:09
🚀 XRP's Quantum Attack Vulnerability Lower Compared to Bitcoin According to NS3.AI, an analysis reveals that approximately 0.03% of XRP's supply has exposed public keys, contrasting with 11%–37% of Bitcoin's supply. This indicates that XRP is relatively less susceptible to quantum attacks. The XRP Ledger offers the ability to replace an account's signing key without necessitating fund transfers, thereby minimizing exposure during security updates. #XRP#QuantumAttack#CryptocurrencySecurity#Bitcoin#Blockchain#NS3AI#XRPLedger#BTC
@CryptoM · Post #64526 · 09.04.2026 г., 06:14
🚀 Polymarket Traders' Earnings: Only 0.015% Achieve $5,000 Monthly Crypto analyst Andrey Sergeenkov's recent analysis reveals that a mere 0.015% of Polymarket traders managed to earn at least $5,000 monthly for four consecutive months. According to NS3.AI, the study examined trading data spanning from April 2024 to April 1, 2026, highlighting the challenges faced by traders in achieving consistent profitability on the platform. #Polymarket#Crypto#Trading#Earnings#Profitability#Analysis#NS3AI
@CryptoM · Post #64763 · 09.04.2026 г., 20:15
🚀 Ether Rises Over 6% as Undervaluation Signals Potential Retest of Higher Levels Ether experienced a 6.33% increase, surpassing $2,150, with indicators suggesting a potential retest of the $2,400–$2,500 range. According to NS3.AI, the Capriole Macro Index Oscillator registered a reading of -2.42, indicating that Ether is in a rare undervaluation zone. This development has sparked interest among investors, who are closely monitoring the cryptocurrency for further movements. #Ether#Crypto#Ethereum#Undervaluation#PriceIncrease#Investment#CryptoTrading#NS3AI#ETH
@CryptoM · Post #64801 · 10.04.2026 г., 00:36
🚀 U.S. President Trump Criticizes Iran's Handling of Strait of Hormuz Oil Passage U.S. President Donald Trump has expressed dissatisfaction with Iran's management of oil transit through the Strait of Hormuz. According to NS3.AI, Trump stated that Iran's actions are not in line with an agreement he claims was established. The Strait of Hormuz is a critical chokepoint for global oil shipments, and any disruptions can have significant implications for international markets. #Trump#Iran#StraitOfHormuz#OilTransit#GlobalOil#InternationalMarkets#NS3AI
@CryptoM · Post #65098 · 11.04.2026 г., 00:52
🚀 Altcoin Season Index Remains Steady at 35 CoinMarketCap's Altcoin Season Index has maintained its position at 35, unchanged from the previous day. According to NS3.AI, this index measures the performance of leading cryptocurrencies compared to Bitcoin over the past 90 days. #Altcoin#Crypto#Bitcoin#CoinMarketCap#Cryptocurrency#AltcoinSeason#NS3AI#CryptoIndex#CryptoNews#BTC
@CryptoM · Post #64978 · 10.04.2026 г., 12:43
🚀 Hezbollah Vows to Persist in Resistance Efforts Hezbollah has declared its commitment to continue its resistance until the very end. According to NS3.AI, Walter Bloomberg reported that the pro-Iranian armed group made this statement, emphasizing their unwavering stance. #Hezbollah#Resistance#Iran#ArmedGroup#WalterBloomberg#NS3AI
@CryptoM · Post #64469 · 09.04.2026 г., 01:45
🚀 Altcoin Season Index Remains Steady at 34 CoinMarketCap's Altcoin Season Index has remained at 34, showing no change from the previous day. According to NS3.AI, this index evaluates the 90-day performance of the top 100 cryptocurrencies, excluding stablecoins and wrapped tokens, in comparison to Bitcoin. #AltcoinSeason#Cryptocurrency#CryptoMarket#Bitcoin#Altcoins#CoinMarketCap#CryptoIndex#NS3AI#BTC
@CryptoM · Post #65113 · 11.04.2026 г., 03:14
🚀 Crypto Futures Experience $103 Million in Liquidations Over 24 Hours Crypto futures markets have experienced significant activity, with approximately $103 million in liquidations occurring in the past 24 hours. According to NS3.AI, this development highlights the ongoing volatility within the cryptocurrency sector. The liquidations reflect the dynamic nature of crypto trading, where rapid price movements can lead to substantial financial impacts for traders. This event underscores the importance of risk management strategies in navigating the unpredictable crypto landscape. #CryptoFutures#Liquidations#CryptoVolatility#Cryptocurrency#RiskManagement#CryptoTrading#NS3AI