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

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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Пронајдени 5 слични објави

Пребарај: #stevebannon

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Newt Gingrich

@newtgingrich · Post #4306 · 03.03.2023 г., 01:43

#newtgingrich : RT @RealAmVoice: "It is very clear that Putin has made a gamble — which is the gamble probably of his life." @NewtGingrich joins the War Room to break down the cyber attacks and China displacing the United States. Watch more War Room with #SteveBannon here: https://t.co/No6fL5Gjrqhttps://t.co/IqpJjfrwIf

Trump's Ear

@trumpsear_tg · Post #1514 · 16.09.2025 г., 17:05

Economic war with Russia on the horizon? Steve Bannon: “You’ve now got a major economic war that is going to kick up with Russia. They just put out the word. They said ‘Hey […] if you touch the $300 billion that you stole from us, each country that does it is going to answer to us personally.’ […] This is something we didn’t do to the Nazis, something we didn’t do to Imperial Japan… We gotta be very careful. Everybody is treading on thin ice on this one.” #SteveBannon#Russia#war 👂More on Trump's Ear ⚠️

Trump's Ear

@trumpsear_tg · Post #1533 · 18.09.2025 г., 19:59

According to Steve Bannon, the United Kingdom is on the brink of civil war. Its leaders have allowed the country to be taken over, its institutions of power have been hollowed out, and those who resist are being punished. This is a battle for Western civilization. This is why Donald Trump is not in London — because there are huge riots down there. #SteveBannon#UK#civilwar 👂More on Trump's Ear ⚠️

Reuters: World

@reutersworldchannel · Post #149386 · 15.10.2021 г., 01:45

January 6 panel moves to hold Steve Bannon in contempt A U.S. congressional committee probing the deadly Jan. 6 assault on the Capitol said it would vote next week to hold Steve Bannon, a longtime adviser to former President Donald Trump, in contempt of Congress for refusing to comply with a subpoena. #January6#Trump#SteveBannon#News#Reuters Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en ➖@reutersworldchannel➖

Reuters: World

@reutersworldchannel · Post #149407 · 15.10.2021 г., 13:49

October 15, 2021: Bill Clinton, Steve Bannon, FDA Moderna booster, Texas abortion law, Immigration Top headlines on October 15, 2021: Bill Clinton in hospital, Steve Bannon, FDA Moderna booster, Texas abortion law, Biden's immigration plans 1. Ex-President Bill Clinton is recovering in hospital after being treated ‘for a non-COVID-19 infection.’ The 75-year-old was admitted on Tuesday evening. 2. A panel probing the U.S. Capitol assault will vote to hold Steve Bannon in contempt of Congress after the Trump advisor refused to comply with a subpoena. 3. U.S. FDA advisers voted in favor of booster shots of the Moderna vaccine for Americans aged 65+ and those at high risk of illness. A U.S. appeals court rulesd to keep a Texas abortion ban in effect. The law bars the procedure as early as six weeks into pregnancy. 5. U.S. President Joe Biden's administration will restart Trump’s ‘Remain in Mexico’ policy by mid-November. The program forces asylum seekers to wait in Mexico for U.S. court hearings #FDA #COVID19 #USBorder #Texas #abortion #SteveBannon #CapitolRiot #BillClinton #Clinton #Moderna #Vaccine #Booster #US #Mexico #Migrants #Biden #UnitedStates #Trump #News #Reuters Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en ➖@reutersworldchannel➖