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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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#tricks #basic

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Пребарај: #sinai

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BadVolf

@badvolfnews · Post #1155 · 24.10.2023 г., 08:01

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FALSE FLAG INCOMING: As Zionist officials claim #Hamas aka Palestinian Resistance were "carrying instructions on how to make chemical weapons " - @FoxNews interview son of "Hamas founder" Moses Hasan Yousef who was a spy for Zionist intelligence 1997 - 2007 before being given US residency. Yousef even betrayed his own father to Zionists. During Fox interview, Yousef recommends gassing Gaza tunnels to eliminate Hamas. He uses "we" which suggests he is still a traitor to Palestinian people & working with or for Zionists. Shin Bet considered him its most valuable source within the Hamas leadership. The information Yousef supplied exposed numerous Hamas cells, and assisted Israel in hunting down many militants, and incarcerating his own father, Hamas leader Sheikh Hassan Yousef. Yousef told Fox News' Brian Kilmeade that Israel should explore using gas after evacuating civilians in Gaza. "It sounds horrible, but I don’t see any other option. The tunnels are interconnected, and gas could be one of the solutions. But this has to be in the right time.." He recommends civilians are evacuated which means forced to leave their land for 3rd time to #Sinai. He then recommends using gas in tunnels to eliminate Resistance factions. However looking at the ridiculous claim Hamas + chemical weapons. What are the chances that a #WhiteHelmet style event will be orchestrated by Zionists - gassing civilians & blaming Hamas while exterminating more "human animals". Zionists know a ground invasion is suicide so this type of operation is viable alternative. Very high risk imo.

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#hamas #sinai #whitehelmet

Marwa Osman/MidEaStream

@Marwa_OsmanLB · Post #4026 · 19.02.2025 г., 12:07

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Israeli Ambassador to the United States, Yechiel Leiter, issued a threat to Egypt over the Egyptian army’s reinforcements in Sinai, labeling it a "serious threat" to the peace agreement with Tel Aviv. He revealed that the Israeli government will soon address the issue with greater urgency. Leiter accused #Cairo of building military bases "for offensive purposes," pointing to the addition of 700 tanks in the region as evidence of Egypt's growing military presence. He also criticized Egyptian President Abdel Fattah el-Sisi, claiming he is "playing both sides," but suggested that Sisi would be more open to cooperation with Israel if #Hamas in #Gaza is decisively dealt with. #EgyptIsraelTensions#Sinai#IsraelThreatensEgypt#MiddleEast#EgyptianArmy#Israel

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#cairo #hamas #gaza #egyptisraeltensions #sinai #israelthreatensegypt #middleeast #egyptianarmy #israel