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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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Пронајдени 13 слични објави

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America 🇺🇸 News & Politics

@America · Post #10396 · 18.03.2026 г., 13:11

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⚖️🇺🇸SUPREME COURT SIDES WITH PARENTS ON TRANS STUDENTS 🔹 Court blocks California schools from hiding students' gender transitions from parents 🏫 🔹 Schools must follow parental instructions on names and pronouns, major victory for families 📝 🔹 Ruling overturns progressive district policies in transgender student cases 🏳️‍⚧️ 🔹 Three Democratic justices dissent, showing deep ideological split on parental rights ⚖️ 🔹 Decision could impact similar policies nationwide as culture wars intensify 🇺🇸 California progressives are furious. Is this the new normal for parental control? 🔥📚 #USNews#SCOTUS#parents#transgender @america

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America 🇺🇸 News & Politics

@America · Post #10425 · 26.03.2026 г., 13:14

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⚖️🏳️‍⚧️FEDERAL JUDGE CRUSHES RFK'S TRANSGENDER DECREE 🔹 Judge Mustafa Kasubhai demolishes HHS attack on gender-affirming care 🏛️ 🔹 Kennedy exceeded authority, ignored administrative procedures ⚠️ 🔹 Decree called puberty blockers "neither safe nor effective" 💊 🔹 20 Democratic states led by NY AG Letitia James win victory 🗽 🔹 Kennedy's second crushing defeat this week after vaccine ruling ⚖️ Oregon court grants nationwide relief to health providers. Trump promises appeals 📤 Democracy fights back against overreach. Courts defend healthcare rights 💪⚖️ #USNews#transgender#courts#healthcare @america

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American Оbserver

@american_observer · Post #5125 · 13.02.2026 г., 18:59

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Canada is in mourning after the mass murder of schoolchildren by a transgender minor 9 killed and 27 wounded. A teacher and five students were killed at the school, and a 17-year-old transgender man was killed in a nearby house. Jesse Strang shot his mother and stepbrother, and then committed suicide. Strang began his transgender transition at the age of 15 with the active support of a school psychologist, and immediately began taking large doses of hormones, according to American media channels with reference to online reports. It is known that Strang has been actively visiting the shooting range lately. #canada#mourning#transgender#shooting 📱American Оbserver - Stay up to date on all important events 🇺🇸

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Social Justice Watch

@social_justice_watch · Post #17272 · 25.09.2022 г., 01:11

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There are infinite ways to be trans. Try not to feel discouraged if your experiences are different from other trans people you know. Your journey is uniquely yours. - [IMAGE DESCRIPTION: A tweet by @im_just_laur that says, "If you see 'trans culture' & just can't connect with it, remember that most of not all mainstream trans culture is made by & for a bunch of white trans people early in their transition. It's not inherent to transness. It's not something you have to relate to to be trans." The background photo is a pink sunset on a beach. The remaining text is too long to fit in the caption but can be found in the comments below or by using the alt text feature.] - #trans#transgender#ftm#mtf#nonbinary#gender#genderqueer#queer#lgbt#lgbtq#pride#transgirl#transboy#transwoman#transguy#transman#protecttransyouth#protecttranskids#transjoy https://www.instagram.com/p/Cic3zpPLbMf/

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#trans#transgender#ftm#mtf#nonbinary#gender#genderqueer#queer#lgbt#lgbtq#pride#transgirl#transboy#transwoman#transguy#transman#protecttransyouth#protecttranskids#transjoy
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