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.
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A gold coin found in 1713 in Transylvania is likely genuine. The coin shows a Roman ruler named Sponsian, who was long believed to be fictional. Tests found real ancient wear and soil deposits, suggesting he was a real leader during the 3rd-century Roman crisis.
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#history#ancientrome#archaeology#facts
Flexible glass was a legendary type of glass from ancient Rome. A craftsman is said to have invented it, and it could supposedly bend without breaking. He showed it to Emperor Tiberius, who reportedly asked him to confirm he was the only one who knew how to make it. The emperor then had him executed to prevent the invention from spreading, an early example of planned obsolescence. No known examples survive today.
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#FlexibleGlass#AncientRome#History#Legends#Innovation
The Ancient Romans put toast in their wine because they believed it was good for health. This is where the tradition of "raising a toast" comes from. 🍷🍞
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@googlefactss🍷🍞#AncientRome#Toast#Wine#History#Tradition
The Battle of Munda was fought on 17 March 45 BC in southern Hispania. Julius Caesar faced the last Pompeian army led by Gnaeus Pompeius, Sextus Pompeius, and Titus Labienus. The Pompeians held high ground. After hours of heavy fighting, Caesar’s army won. Around 30,000 Pompeians were killed. The victory ended major resistance to Caesar in the Roman civil war.
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#history#romanempire#ancientrome#juliuscaesar#historyfacts#war
Saturnalia was an ancient Roman festival from December 17th to 23rd honoring Saturn, god of agriculture and time. During this time, social rules changed: slaves ate with masters, a "King of Saturnalia" was chosen, and people exchanged gifts like candles and figurines. The city was full of feasting, gambling, and candlelight. Many Saturnalia traditions influenced modern Christmas celebrations.
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[Source1] [Source2]
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#Saturnalia#RomanHistory#ChristmasOrigins#WinterSolstice#AncientRome#History