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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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Opportunities with Zula

@opportunities_zula · Post #352 · 08.10.2025 г., 14:39

Echidna Global Fellowship 2026 (Fully Funded in USA) 🇺🇸 Visit: https://opportunitiescorners.com/echidna-global-scholar-program/ The Program Covers Stipend, Airfare Tickets, Accommodation, Visa Cost, and Health Insurance. #OpportunitiesCorners#Fellowship#USA

NEWS 鏈新聞-ABMedia

@abmedia_news · Post #23703 · 07.04.2026 г., 11:00

【🚀AI 人工智慧|OpenAI Safety Fellowship 開放申請:外部研究員加入 AI 安全研究,截止日 5 月 3 日 】 #OpenAI#Safety#Fellowship 📍請見報導: https://abmedia.io/openai-safety-fellowship-2026-apply-ai-alignment-research 📍訂閱鏈新聞頻道:https://linktr.ee/abmedia.io

Opportunities with Zula

@opportunities_zula · Post #1443 · 06.03.2026 г., 19:38

04 Days Left to Apply: Summer Research Program 2026 in Bulgaria 🇧🇬 (Fully Funded) Visit: https://opportunitiescorners.com/bulgaria-insait-summer-fellowship/ 12 Weeks Summer Internship for all the Nationals. No IELTS. No Fee. The Program Covers Airfare, Accommodation, 2000 Euro Stipend, and Visa Support. Deadline: 8 March 2026 #BulgariaSummer#Fellowship#OpportunitiesCorners

Opportunities with Zula

@opportunities_zula · Post #764 · 10.12.2025 г., 17:35

MIT KSJ Fellowship 2026/27 in USA 🇺🇸 (Fully Funded) Visit: https://opportunitiescorners.com/mit-ksj-fellowship/ 9 Months Program. Open to all the Nationals. The Program Covers Airfare, Housing, Insurance, 85000 USD Stipend. #KSJ#USA#Fellowship#OpportunitiesCorners

Opportunities with Zula

@opportunities_zula · Post #885 · 25.12.2025 г., 23:31

2026 Berlin Fellowship in Germany 🇩🇪 (Fully Funded) Visit: https://opportunitiescorners.com/berlin-fellowship-program/ The Program Covers Airfare, Meals, Accommodation, Monthly Stipend, Living Expenses, Health Insurance. #Berlin#Fellowship#Germany#OpportunitiesCorners

Field research fellowship If you're a UPSC student and thinking about a Plan B, this could be the perfect opportunity for you. Data Analytics for Public Policy Fellowship is a 2 months , fully online program that allows you to explore the world of quantative research methods. It's a great way to test your interests and see if research could be your Plan B. The program runs from 5th January to 15th March 2025, and you won't need to travel for fieldwork—everything can be done in your own neighborhood. With limited seats, this is a chance to explore new opportunities without a long-term commitment. Apply by 4th January. https://iisppr.org.in/data-fellowship/ #UPSC#CareerPlanning#Fellowship#NewOpportunities

Field research fellowship If you're a UPSC student and thinking about a Plan B, this could be the perfect opportunity for you. The IISPPR Field Research Fellowship is a one-month, fully online program that allows you to explore the world of qualitative research methods. It's a great way to test your interests and see if research could be your Plan B. The program runs from September 1 to 30, 2024, and you won't need to travel for fieldwork—everything can be done in your own neighborhood. With limited seats, this is a chance to explore new opportunities without a long-term commitment. Apply by August 15 https://iisppr.org.in/ #UPSC#CareerPlanning#Fellowship#NewOpportunities

Field research fellowship If you're a UPSC student and thinking about a Plan B, this could be the perfect opportunity for you. The IISPPR Field Research Fellowship is a one-month, fully online program that allows you to explore the world of qualitative research methods. It's a great way to test your interests and see if research could be your Plan B. The program runs from September 1 to 30, 2024, and you won't need to travel for fieldwork—everything can be done in your own neighborhood. With limited seats, this is a chance to explore new opportunities without a long-term commitment. Apply by August 15 https://iisppr.org.in/ #UPSC#CareerPlanning#Fellowship#NewOpportunities

Field research fellowship If you're a UPSC student and thinking about a Plan B, this could be the perfect opportunity for you. The IISPPR Field Research Fellowship is a one-month, fully online program that allows you to explore the world of qualitative research methods. It's a great way to test your interests and see if research could be your Plan B. The program runs from September 1 to 30, 2024, and you won't need to travel for fieldwork—everything can be done in your own neighborhood. With limited seats, this is a chance to explore new opportunities without a long-term commitment. Apply by August 15 https://iisppr.org.in/ #UPSC#CareerPlanning#Fellowship#NewOpportunities

🇫🇷 Paris Collaborative Fellow 2026 | Fully funded Дедлайн: 26 февраля 2026 | Страны: все | Уровни: школьники 12–18 лет Что покрывают Участие в глобальной программе для молодых инноваторов Возможность презентовать проект перед международной экспертной панелью Наставничество и сопровождение Возможные предложения стажировок и рекомендательные письма Доступ к международному сообществу участников из 80+ стран Где учиться Paris Collaborative (международная программа, онлайн/гибридный формат) Подать онлайн: https://pariscolab.com #fellowship#innovators#youth#startup#science#technology#socialimpact

Crypto M - Crypto News

@CryptoM · Post #65271 · 12.04.2026 г., 13:09

🚀 Tether-Linked Super PAC Reports $300,000 Ad Spend Amid Zero Account Balance Fellowship, a super PAC reportedly associated with Tether, has revealed a $300,000 advertising expenditure to Nxum Group, a company co-founded by Tether US CEO Bo Hines. According to NS3.AI, the Federal Election Commission filing indicates that the spending was in support of Georgia Republican Clay Fuller. Despite this significant expenditure, Fellowship's current federal disclosures continue to show its accounts at zero, even after a prior announcement that it would be established with pledges totaling $100 million. #Tether#SuperPAC#AdSpend#NxumGroup#BoHines#FederalElectionCommission#GeorgiaRepublican#ClayFuller#Fellowship#PoliticalExpenditure#ZeroBalance#NS3AI