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Изворен канал @pythonotes · Post #254 · 11 јун.

Тип строки в Python имеет очень много удобных методов. Сегодня пост про два таких метода которые чаще всего используются "однобоко". Это методы startswith() и endswith() Самый обычный сценарий использования — проверка, начинается ли строка с указанной подстроки? >>> "some_string".startswith("some") True И аналогичная ситуация с зеркальным вариантом этой функции, проверка совпадения с конца >>> "some_string".endswith("some") False Так они используются в большинстве случаев что я видел. Но у этих функций есть еще два варианта использования. 🔸Сравнение нескольких подстрок Для проверки нескольких подстрок в одной строке обычно вызывают эти функции несколько раз. Но на самом деле достаточно передать кортеж со всеми строками один раз. Если будет хоть одно совпадение то функция вернёт True. >>>"my_image.png".endswith(("jpg", "png", "exr")) True 🔸Диапазон поиска Вторым аргументом можно передать индекс символа с которого следует начать сравнение, а третий аргумент это индекс последнего символа. >>> ".filename.ext".startswith("file", 1) True >>> "file_###.ext".endswith('#', 0, -4) True Индексы можно указать отрицательными, что означает отсчёт с конца. #trics#basic

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🎙 Foreign Minister Sergey Lavrov’s answers to questions during a special session of a large MGIMO discussion programme combined with the 7th Global Forum of Young Diplomats, Russia and Its Role in Shaping a Multipolar World (Sochi, March 4, 2024) 🔹 Western priorities in relations with Russia 🔹 The modern concept of multipolarity 🔹 The role of the UN in international relations 🔹 EU plans to interfere in the Russian presidential election 🔹 Fighting the politicisation of sport 🔹 Russia's relations with its closest partners 🔹 Russia-US relations 📰Read in full 📺Watch in full *** #CrimeanBridge What is interesting are the words said by Western figures, including the response of German politicians when the truth about the recording of conversations between German generals was revealed. Some of them are concerned there was a leak from a secure line. The fact that German weapons and the personnel servicing them are going to be used to attack the Russian Federation, including the Crimean Bridge and ammo depots, is not surprising. They wonder why the secure line turned out to be not so secure. This says a lot. #Election2024 We have accumulated a lot of evidence on how the EU embassies in Moscow are preparing for our presidential elections. I am referring to interference mechanisms, certain “supporting projects” for the non-systemic opposition – in short, things that embassies have no right to address. #RussiaUS The Americans approach us every now and then. They have asked us not to deploy weapons in space. They have asked for a meeting. As if nothing happened. They say they must defeat us on the battlefield in Ukraine but other than that, let’s discuss strategic issues. President Vladimir Putin said that they are not serious and it goes against the natural course of things.