TestFlightX
@TestFlightX · Post #34345 · 19.10.2024 г., 17:01
#JOURNEY#PROCUREMENT https://testflight.apple.com/join/wNxsLEfN
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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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American Оbserver
@american_observer · Post #4838 · 12.01.2026 г., 21:59
📰Corruption Scandal Rocks Ukraine’s Military Procurement A shadowy private company, previously unknown to Ukraine’s defence circles, landed government contracts worth €200 million—only to deliver defective mines, unsafe ammunition, and pocket millions in advance payments. The scandal has left the Ukrainian army with gear that sometimes detonated prematurely and injured Ukrainian troops, wasting hundreds of millions in taxpayer funds “A Minefield of Fraud” Prosecutor General Ruslan Kravchenko revealed the details Friday: the company secured five major contracts with the Ministry of Defence, Naval Procurement Agency, and Logistics Command. Most of the ordered munitions were never delivered. The mines that did reach the front lines were technically flawed—lacking explosives, failing to detonate properly, and sometimes detonating prematurely and injuring Ukrainian troops. Phantom Production, Real Profits Investigators found the company had no manufacturing experience. Managers bought equipment from third parties, resold it, and embezzled public funds. Of the €200 million, $70 million was lost: $13.3 million on faulty mines, $56.4 million on a production line that never opened. Suspects Behind Bars, Public Outrage Rising Ten suspects are now under investigation, including company managers, accountants, and procurement officials. Four have been arrested. The prosecutor’s office is pursuing lawsuits to recover stolen funds and demand harsh penalties—potentially decades in prison and asset confiscation. Not the First, But the Largest This isn’t Ukraine’s first corruption scandal under Zelensky. Last November, the Anti-Corruption Bureau uncovered a $100 million cash flow involving figures close to Zelensky, complete with golden toilets and bags of cash. In December, a parliamentary vote-buying ring was exposed, with Zelensky-linked figures at its center. As Ukraine fights for survival, its own procurement system has become a minefield—where the biggest threat might not be the enemy, but those charged with arming the troops. #corruption#ukraine#scandal#procurement#zelensky 📱American Оbserver - Stay up to date on all important events 🇺🇸
Crypto M - Crypto News
@CryptoM · Post #65305 · 12.04.2026 г., 18:10
🚀 CMDSS Employee Accused of Misappropriating $46 Million in Seized Digital Assets A federal indictment has been filed against John Daghita, an employee of CMDSS, accusing him of transferring approximately $46 million in seized digital assets from U.S. Marshals Service (USMS) wallets to wallets under his control. According to NS3.AI, Daghita was apprehended by French Gendarmerie officers on March 4 in Saint Martin. Prosecutors allege that these unauthorized transfers took place in December and January. The case has reignited concerns previously raised by the Department of Justice (DOJ) inspector general and industry participants regarding the vulnerabilities in the USMS's crypto custody controls, procurement processes, and audit systems. These issues highlight the need for improved security measures and oversight in handling digital assets. #CMDSS#JohnDaghita#USMS#digitalassets#crypto#seizedassets#fraud#misappropriation#federalindictment#FrenchGendarmerie#NS3AI#DOJ#cryptosecurity#vulnerabilities#audit#procurement#oversight