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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 87 слични објави

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@ssbclear · Post #9853 · 07.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Crisis Education Women Fitness Justice Law Sacrifice

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@ssbclear · Post #9847 · 06.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Leader Alone Friend Courage Obstacle Time Nation

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@ssbclear · Post #9841 · 05.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Fear Command Influence Courage Stress Risk Challenge

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@ssbclear · Post #9835 · 04.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Soldier War Mother Success Abide Allow Danger

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@ssbclear · Post #9830 · 03.02.2026 г., 02:50

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wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Learn Hard work Criticism Bold Team Ability

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@ssbclear · Post #9820 · 01.02.2026 г., 03:29

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Energy Romance Boyfriend Father Deep

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@ssbclear · Post #9813 · 31.01.2026 г., 03:27

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Revise Ahead Thought Adopt Practice

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@ssbclear · Post #9809 · 30.01.2026 г., 03:27

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Legend Sight Sequence Sweet Simmer

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@ssbclear · Post #9804 · 29.01.2026 г., 03:28

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Refine Answer Time Queen Shallow

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@ssbclear · Post #9797 · 28.01.2026 г., 03:25

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Cloud Brave Crook Sad Aware

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@ssbclear · Post #9791 · 27.01.2026 г., 03:25

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Safe Joy Mingle Mercy Follow

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@ssbclear · Post #9784 · 26.01.2026 г., 03:20

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#wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: #wat@ssbclear ⚔️WAT Challenge⚔️ Write sentences— 15 seconds or less for each. 📝Write & Review! ▹ Drop your responses below. ▹ Review at least 2 fellow responses with constructive feedback. Let’s sharpen our thinking and expression— together. 💬🧠 Everyone reviews, everyone gets reviewed!💪🔥 🔤Today’s Words: Above Sink Depression Crime Amount

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