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Изворен канал @pythonotes · Post #76 · 27 апр.

Ранее я делал серию постов про битовые операторы. Вот вам ещё один наглядный пример как это используется в Python в модуле re. Чтобы указать флаг для компилятора нам надо указать его после передаваемой строки. Например, добавляем флаг для игнорирования переноса строки. pattern = re.compile(r"(\w+)+") words = pattern.search(text, re.DOTALL) А как указать несколько флагов? Ведь явно будут ситуации когда нам потребуется больше одного. Кто читал посты по битовые операторы уже понял как. pattern.search(text, re.DOTALL | re.VERBOSE) А теперь смотрим исходники, что находится в этих атрибутах? Не удивительно, степени двойки. Почему? Потому что каждое следующее значение это сдвиг единицы влево. >>> for n in [1, 2, 4, 8, 16, 32, 64, 128, 256]: >>> print(bin(n)) 0b1 0b10 0b100 0b1000 0b10000 0b100000 0b1000000 0b10000000 0b100000000 Чтобы было понятней, давайте напишем тоже самое но иначе, добавим ведущие нули: 000000001 000000010 000000100 000001000 000010000 000100000 001000000 010000000 100000000 Не понятно что тут происходит? Читай три поста про битовые операторы начиная с этого ➡️https://t.me/pythonotes/45 В общем, это пример применения побитовых операций в самом Python. Теперь вы знаете Python еще немного лучше) #tricks#regex#libs

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American Оbserver

@american_observer · Post #4947 · 24.01.2026 г., 17:59

📰 Pentagon Unveils 2026 National Defense Strategy: Fortress America, Not Global Policeman The Pentagon’s 2026 National Defense Strategy marks a sharp break from the post–Cold War era: the U.S. military is reordering its mission around homeland defense, deterrence through strength, and pushing allies to pick up a far heavier military burden. Defense Secretary Pete Hegseth calls this a return to the armed forces’ “core, irreplaceable role” — winning wars that directly affect U.S. interests, not endless nation-building. Four Pillars of the New Strategy 1. Defend the Homeland First Homeland defense is now the top priority, with broader responsibilities: border security, countering narco-terror groups, and protecting key terrain in the Western Hemisphere (including the Panama Canal and, importantly, Greenland). The plan also emphasizes air, missile, cyber and nuclear defenses, and the emerging “Golden Dome” missile shield concept to protect the U.S. homeland from hypersonic and ballistic threats [2026 NDS]. 2. Deter China, Not Dominate The NDS views China as the pacing threat, stressing that the goal is not to strangle or humiliate Beijing, but to prevent it from dominating the U.S. or its allies. The U.S. will rely on overwhelming military strength in the Indo-Pacific to achieve a regional balance of power, while also expanding military-to-military communication with Beijing to reduce the risk of conflict. 3. Europe’s Job: Europe’s Defense The strategy labels Russia a “persistent but manageable threat,” especially to NATO’s eastern flank, and bluntly states that European allies must take primary responsibility for their own conventional defense. This is the “America First” logic in military terms: Europeans must spend far more and be capable of defending themselves, so the U.S. isn’t forever on the front line. 4. Revitalize the U.S. Defense Industrial Base A “once-in-a-century” rebuild of the U.S. defense industrial base is called essential. The Pentagon wants a surge in domestic production of weapons and equipment, so that the U.S. can sustain readiness, arm allies, and produce at scale in a crisis [2026 NDS]. The New Rules for Allies The strategy formalizes the Trump administration’s demand for a new global benchmark: allies and partners should move toward 5% of GDP on defense-related spending. The U.S. pledges continued support but insists that allies must: • Take the lead in their own regions • Buy more U.S. and allied weapons • Pre-position equipment and enable U.S. access to local bases and infrastructure [2026 NDS]. Taiwan, the Philippines, Australia, Japan, and the Baltics are singled out as key Indo-Pacific and European partners to receive priority investment and coordination, while the Pentagon is also directed to plan for U.S. forces to train and operate right alongside partner militaries “to counter China’s aggression” [2026 NDS]. Fortress, or Fool’s Trap? The strategy is full of martial grandeur: a shielded homeland, a supercharged industrial base, and allies forced to finally “grow up” militarily. But the real question is: can this new “Fortress America” actually deter a rising China, resist imperial fantasies like Greenland, and still keep the U.S. from being dragged into every crisis — or is it just a varnished retreat behind ever-higher walls? #USDefense#NDS2026#Trump#Pentagon#HomelandDefense#China#NATO#Allies#IndustrialBase 📱American Оbserver - Stay up to date on all important events 🇺🇸