TGINSIGHT SIMILAR POSTS
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
Пребарај: #nationalsecurity
@developmentnewsindia · Post #44467 · 05.05.2026 г., 19:06
A sudden scooty explosion was reported near the headquarters of the Border Security Force (BSF) in Punjab's Jalandhar district. The high-security location of the blast has added urgency to an already serious situation. Police investigating all angles. Fortunately no one was hurt. #nationalsecurity
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@developmentnewsindia · Post #44466 · 05.05.2026 г., 19:00
3 accused have been charged in Ahmedabad in ISIS-linked Jihadi bioterrorism conspiracy to carry out mass poisoning in public spaces. Hyderabad-based doctor Syed Ahmed Mohiuddin, and co-accused Azad & Suhel from U.P, have been charged under UA (P) Act, BNS and Arms Act. #nationalsecurity
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@developmentnewsindia · Post #44429 · 05.05.2026 г., 05:44
Recent imagery from Pakistan shows reconstruction work at the "terror-linked" targets India struck in May 2025, previously damaged structures are being restored, demolitions & debris continue to be removed nearly a year after the strike. #nationalsecurity https://www.indiatoday.in/world/story/jaish-rebuilds-bahawalpur-base-muzaffarabad-after-operation-sindoor-satellite-images-show-2906805-2026-05-05
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@developmentnewsindia · Post #44284 · 01.05.2026 г., 09:31
In March 1966, IAF bombed Mizoram, due to insurgency threats In May 1967, Naxalism started in India. Sixty years later, both of these Internal security threats are over within a span of a month. #NationalSecurity
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@developmentnewsindia · Post #44273 · 01.05.2026 г., 05:52
Mizoram's Last Militant Group Lays Down Arms, State Declared Insurgency-Free. Manipur next. #nationalsecurity https://t.co/O94YQowcHZ
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@developmentnewsindia · Post #44155 · 28.04.2026 г., 08:25
NIA teams are spread across various districts, including South 24 Parganas, Hooghly, Nadia, and Kolkata ahead of polling. Teams are probing the cases of recovery of crude bombs, illegal arms and ammunitions. Teams are also on ground to immediately respond if a situation arises during, after or before polling #NationalSecurity
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@developmentnewsindia · Post #44145 · 28.04.2026 г., 06:26
On 18th and 19th April, the Enforcement Directorate conducted raids at several locations linked to a Christian evangelical organisation named The Timothy Initiative, TTI. In a press release, the ED said that it is investigating how TTI channelled over Rs 95 crore into India using foreign banks issued debit cards (Truist Bank, 🇺🇸) while completely skipping FCRA regulations. TTI funneled money using these cards to build churches(and maybe more) in naxal affected districts of Chattisgarh. #nationalsecurity https://x.com/i/status/2047643801460805854
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@developmentnewsindia · Post #44143 · 28.04.2026 г., 05:16
Punjab (Patiala): Man dies while attempting to blow up railway track near Shambhu border. No damage or other casualties. Police recovered evidence (incl. SIM), probe underway with GRP & RPF to uncover larger conspiracy. #NationalSecurity
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@developmentnewsindia · Post #44142 · 28.04.2026 г., 04:24
Border land handover for fencing: Only 8 km out of 127 km given to BSF since January,2026 Calcutta High Court pulls up Bengal Govt #NationalSecurity
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@developmentnewsindia · Post #44138 · 28.04.2026 г., 03:33
Salim Dola, a close aide of Dawood Ibrahim, was deported from Istanbul, Turkey, and brought back to India #NationalSecurity
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@developmentnewsindia · Post #44131 · 27.04.2026 г., 15:29
Center puts 2029 as the deadline to end Insurgency across the North East. Major Realignment of CAPFs been planned after West Bengal Election, Amarnath Yatra ends. #NationalSecurity
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@developmentnewsindia · Post #44090 · 26.04.2026 г., 17:36
In a significant development, the Union Ministry of Home Affairs (MHA) has handed over a case related to the recovery of crude bombs in West Bengal to the National Investigation Agency (NIA), citing serious national security concerns and the need to probe a larger conspiracy. #NationalSecurity
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