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Изворен канал @pythonotes · Post #32 · 7 фев.

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Скорее всего уже слышали, что складывать строки через + это плохая практика. Падение производительности, и всё такое. Без лишних слов, давайте измерять: from timeit import timeit def t1(): # складываем 10 строк через + из переменной t = 'text' for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t2(): # склеиваем список строк через метод join arr = ['text'] * 10 for _ in range(1000): s = ''.join(arr) def t3(): # складываем через + но не из переменной а непосредственно инлайн объекты for _ in range(1000): s = 'text' + 'text' + 'text' + ... # всего 10 раз Теперь каждую строку склейки запустим по 10М раз >>> timeit(t1, number=10000) 0.21951690399964718 >>> timeit(t2, number=10000) 1.4978306379998685 >>> timeit(t3, number=10000) 0.2213820789993406 Хм, а нам говорили что через "+" это плохо и медленно ))) 😁 Тут стоит учитывать, что речь идёт о склейке множества длинных строк. Давайте изменим условия: def t4(): t = 'text'*100 for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t5(): arr = ['text'*100] * 10 for _ in range(1000): s = ''.join(arr) def t6(): for _ in range(1000): s = 'text'*100 + 'text'*100 + ... # всего 10 раз >>> timeit(t4, number=10000) 12.795130728000004 >>> timeit(t5, number=10000) 2.642637542999182 >>> timeit(t6, number=10000) 0.2184546610005782 Вот, уже другой разговор, сразу видна разница, в среднем в 6 раз. Но погодите, почему последний тест t6() по скорости такой же как и t3()? Ведь строки теперь в 100 раз длиннее! Это вопросы оптимизации кода, какие простые изменения ускоряют или замедляют выполнение программы. Мы столкнулись с примером обхода обращения к переменной. Например, именно так работает директива #define в С++, во время компиляции подставляя значение переменной вместо ссылки на неё. В Python это тоже работает, но часто ли вы сможете встретить такой способ работы со строками? К сожалению, способ почти только теоретический. В целом, тесты показали то, что мы хотели. Делаем выводы самостоятельно. Полный листинг 🌍 #tricks

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Пребарај: #dugina

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BadVolf

@BadvolfNews · Post #272 · 29.08.2022 г., 08:41

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🇺🇸🇺🇦🇷🇺Former Virginia State Senator, Col. Richard H. Black (ret.) on murder ofDugina "[...]Just this week, Daria Dugina, the daughter of an activist, a pro-Russian activist, was murdered in Moscow, apparently by a Ukrainian assassin who killed her using a bomb that exploded under her car, ripping her body to pieces and burning her to death. Since the United States has admitted being involved in targeting 13 Russian Generals for assassination in Ukraine, it is possible that the CIA provided the targeting information to go after this young woman. Apparently, they were actually targeting her father. He’s an established pro-Russian pro-war journalist. And they wanted to show that they have the ability to go right into Moscow and to carry out a mafia style hit. So, they did it. I would not be surprised if the CIA provided the targeting information to go after her. It was just a last-minute switch of automobiles that caused the daughter to die instead of the father." #Dugina#assassination @american_majority

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#dugina#assassination
BadVolf

@BadvolfNews · Post #276 · 01.09.2022 г., 10:34

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🇺🇸🇷🇺🇺🇦Former US Marine Corps intelligence officer and UN inspector Scott Ritter:The murder of Daria Dugina was an act of terrorism 'Today, I’m a 61-year-old writer living in the suburbs of Albany, New York. [...] And yet, due to recent circumstances, I once again find myself inspecting my vehicle before getting inside, keeping a watchful eye out for strange vehicles driving down my street and conducting counter-surveillance maneuvers while driving. Why the paranoia? Simply put, my name has been added to a Ukrainian “kill list.” Think I’m getting too wound up? Ask the family of Daria Dugina, the 29-year-old daughter of the Russian philosopher Alexander Dugin. Both she and her father were on the same list. Both were targeted for death by an assassin dispatched by the Ukrainian security services. [...] The existence of the Myrotvorets “death list” is an instrument of terror and should be taken down at the insistence of the U.S. Government.' Source #Dugina#CIA#Ukraine#assassination @american_majority

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#dugina#cia#ukraine#assassination
BadVolf

@BadvolfNews · Post #267 · 27.08.2022 г., 20:43

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🇺🇸🇺🇦🇷🇺“They Killed Her Because Of Her Ideas”: Russian Political Scientist Valery Korovin on Daria Dugina assissination "Her death was a serious loss for the global intellectual conservative environment of the opponents of globalization and the very idea of ​​the modern world. Also, her tragic death as a result of a terrorist act, caused serious damage to the activities of the entire intellectual group headed by the world’s leading philosopher, author of the modern Russian geopolitical school, Eurasianist and intellectual Alexander Dugin. Serious funds from American taxpayers are spent on personally discrediting Dugin and his movement, one slanderous campaign follows another, the best political technologists are working to discredit Dugin and his ideas in the wake of the State Department and the CIA." Read the full text #Dugina#CIA#censorship#Globalists#Biden#Soros @american_majority

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#dugina#cia#censorship#globalists#biden#soros