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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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EKOLOG.UZ| ENG

@ekologuzenglish · Post #11611 · 15.02.2026 г., 01:02

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🇳🇴 NORWAY PHASES OUT UNNATURALLY FAST-GROWING “FRANKEN-CHICKENS” Norway has announced a gradual phase-out of so-called “franken-chickens” by 2027. Norway, where about 70 million chickens are raised annually for food production, has become the first country to commit to raising 100% of its poultry under conditions that ensure high animal welfare standards. Animal rights advocates have welcomed the decision, calling it a “historic moment.” “Franken-chickens,” often referred to in Norway as “turbo-chickens,” are fast-growing birds bred through selective breeding to reach maximum weight in the shortest possible time. Due to rapid growth and extreme size, these chickens suffer from numerous health problems, and most animal welfare organizations strongly condemn this practice. According to Humane World for Animals, franken-chickens reach their “slaughter weight” in just six weeks, leading to severe strain on their bones, muscles, and ligaments. Their bodies often begin to break down as they grow, and many birds lose the ability to move. Humane League UK describes their lives as “extremely short and painful.” The animal protection coalition Anima International has been campaigning for five years to eliminate fast-growing chicken breeds in Norway. Several animal welfare groups are also calling for similar measures in the United Kingdom. Experts emphasize that this decision marks a significant step forward in improving animal welfare. #AnimalRights#Norway#AnimalWelfare#PoultryFarming#ProtectAnimals ☘️Read the latest environmental news on the @ekologuz page. Follow us and send your suggestions and wishes via @eklguz_bot Instagram | Facebook | Twitter | Sayt | Youtube

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EKOLOG.UZ| ENG

@ekologuzenglish · Post #11606 · 14.02.2026 г., 08:03

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🐾 Where are the dogs disappearing in Yangiyul? At the temporary dog holding center (shelter) in Yangiyul, on February 10, volunteers recorded the dogs in the shelter. According to the volunteers, almost no adult dogs remained — all of them were reportedly killed overnight. A day earlier, many dogs were in the shelter, but when the volunteers visited, they saw only 5–6 dogs in the cages. The question is: where did the rest of the dogs go? Volunteers say they were killed. According to the volunteers, tomorrow the remaining poor dogs on Persidskaya Street — who are already afraid of every little sound — are also scheduled to be killed. 💔 This is not just statistics. This is a matter of our humanity. #ProtectAnimals#Yangiyul#AgainstCruelty#Ethics#Animals ☘️Read the latest environmental news on the @ekologuz page. Follow us and send your suggestions and wishes via @eklguz_bot Instagram | Facebook | Twitter | Sayt | Youtube

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