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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 #4894 · 19.01.2026 г., 18:03

Two High-Speed Trains Collided in Southern Spain At least 39 people have been killed and 24 others seriously injured after two trains collided in southern Spain on Sunday night in what the prime minister, Pedro Sánchez, called “a night of deep pain for our country”. A high-speed Iryo train travelling from Málaga to Madrid derailed near the municipality of Adamuz in Córdoba province, crossing on to the other track where it hit an oncoming train, Adif, Spain’s rail infrastructure authority, posted on X. The second train, which was operated by the state rail company, Renfe, also derailed and went down an embankment, authorities said. The accident happened about 10 minutes after the Iryo left Málaga at 6.40pm (1740 GMT), Adif said. “Approximately 300 people were on board at the time of the accident,” Iryo said. “The derailment affected cars six through eight. The Guardia Civil and firefighters are currently working intensively at the scene to evacuate all passengers and have set up a joint emergency response team. “Iryo deeply regrets the incident, has activated all its emergency protocols, and is collaborating closely with Adif, Renfe, and the relevant authorities to determine the causes and manage the situation as effectively as possible.” Another witness told the public broadcaster RTVE that one of the carriages of the first train had completely overturned. An unidentified passenger on the second train – which was going from Madrid to Huelva – told public broadcaster TVE: “There were people screaming, their bags fell from the shelves. I was travelling to Huelva in the fourth carriage – the last, luckily.” Television images showed medical crews and fire services at the scene. Spain’s transport minister, Óscar Puente, said the cause of the accident had yet to be established. Speaking at a press conference at Atocha station in Madrid, he added it was “really strange” that a derailment should have happened on a straight stretch of track. This section of track was renewed in May, he said. Puente said most of those killed and injured had been in the first two carriages of the second train. #trains#collided#spain#puente#Iryo 📱American Оbserver - Stay up to date on all important events 🇺🇸