Метод строки split() разделяет строку на несколько строк по указанному символу
>>> "a_b_c".split('_')
['a', 'b', 'c']
Можно указать максимальное количество разделений
>>> "a_b_c".split('_', 1)
['a', 'b_c']
Или резать с другой стороны с помощью rsplit() (right split)
>>> "a_b_c".rsplit('_', 1)
['a_b', 'c']
А что будет если оставить аргументы пустыми?
>>> "a_b_c".split()
['a_b_c']
Получаем список с одним элементом, потому что по умолчанию используется пробельный символ.
>>> "a b c".split()
['a', 'b', 'c']
То есть это равнозначно такому вызову?
>>> "a b c".split(" ")
['a', 'b', 'c']
Кажется да, но нет! Давайте попробуем добавить пробелов между буквами
>>> "a b c".split(" ")
['a', '', '', 'b', '', '', 'c']
И вот картина уже не так предсказуема 😕
А вот что будет по умолчанию
>>> "a b c".split()
['a', 'b', 'c']
Всё снова красиво! 🤩
По умолчанию в качестве разделителя используется любой пробельный символ, будь то табуляция или новая строка. Включая несколько таких символов идущих подряд. А также игнорируются пробельные символы по краям строки.
>>> "a\t b\n c ".split()
['a', 'b', 'c']
Аналогичный способ можно собрать с помощью регулярного выражения. Но пробелы по краям строки придется обрабатывать дополнительно.
>>> import re
>>> re.split(r"\s+", ' a b c '.strip())
['a', 'b', 'c']
Здесь тоже можно указать количество разделений
>>> re.split(r"\s+", 'a b c', 1)
['a', 'b c']
А что если мы хотим написать красиво, то есть split() без аргументов, но при этом указать количество разделений? В этом случае первым аргументом передаём None
>>> "a\n b c".split(None, 1)
['a', 'b c']
Данный метод не учитывает строки с пробелами, взятые в кавычки
'a "b c" '.split()
['a', '"b', 'c"']
Но для таких случаев есть другие способы.
#tricks#basic
🔥 The "Seven Sisters" Cliffs — chalk cliffs in southern England
Snow-white cliffs stretching into the English Channel, a gentle breeze, endless horizons — perfect for walks, photos, and peace.
Pure British aesthetics: green hills, sea, and white cliffs 🌿🌊
📍 Free entry, scenic route, memories that last forever.
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🖊OPINION | One Hundred Years of British Interference in Venezuela
Declassified UK documents detail how British governments sought to protect oil investments in Venezuela for over a century, including opposing nationalisation and lobbying during Hugo Chávez’s presidency in 2001.
Read the full opinion piece here 👉🏽https://venezuelanalysis.com/analysis/one-hundred-years-of-british-interference-in-venezuela/
#HugoChavez#PDVSA#UnitedKingdom
Bonfire Night (Guy Fawkes Night) is held on 5 November in the UK to remember the failure of the 1605 Gunpowder Plot, when a group including Guy Fawkes planned to blow up the Houses of Parliament and kill King James I.
The plot was discovered and prevented, and people celebrated with bonfires and fireworks. Today the evening is marked by community bonfires, firework displays, and sometimes effigies of “Guy” burned on the fire. Many children learn the traditional rhyme: “Remember, remember the 5th of November / Gunpowder, treason and plot.”
[Read more here]
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🇬🇧London, United Kingdom.
Question: “Have you noticed any demographic changes in the UK?”
A British man: “Not really…”
Passing English women, wrapped from head to toe, seem to agree with him.
#Migrants#UnitedKingdom#Cognitive_Dissonance
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Research has shown that European gas contains high levels of carcinogenic benzene: an excess of carcinogenic benzene has been found in European gas. ⚠️
The average index of the benzene content in British gas exceeded the North American level 37 times, in the Netherlands 66.5 times.
At the same time, the maximum values were recorded in London (200 ppmv) and Amsterdam (73 ppmv), although the maximum norm is 1.6 ppmv. 📊
Benzene belongs to the substances of the first danger class, it is carcinogenic and can cause leukemia, bone marrow and DNA damage.
There is no safe level of exposure to benzene. The study also showed that about 40% of the kitchens inspected in the UK, the Netherlands and Italy have constant gas leaks, even when the stoves are turned off.
In 9% of the houses, the level of leakage was so high that it exceeded European standards for benzene content.
#european#gas#unitedKingdom#Netherlands#benzene
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October 11, 2021: Alaska quake, U.S. and Taliban, AstraZeneca, Prince Andrew, California oil spill
October 11, 2021: Alaska quake, U.S. and Taliban, AstraZeneca, Prince Andrew, California oil spill
1. An earthquake of magnitude 6.8 struck the Alaska Peninsula region, the European Mediterranean Seismological Centre said.
2. The United States said on Sunday the first face-to-face meeting between senior U.S. and Taliban officials since the hardline group retook power in Afghanistan was "candid and professional" and that the U.S. side reiterated that the Taliban would be judged on their actions, not just their words.
3. AstraZeneca's experimental COVID-19 drug has helped cut the risk of severe disease or death in a late-stage study, the British drug maker said, a boost to its efforts to develop coronavirus medicines beyond vaccines.
4. British police said they would be taking no further action after conducting a review of evidence relating to sex crime allegations against Queen Elizabeth's son, Prince Andrew, and the late U.S. financier Jeffrey Epstein.
5. Beaches in a southern California city that were shut because of an oil spill last week are set to reopen, authorities said in a statement.
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#Afghanistan
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October 11, 2021: Alaska quake, U.S. and Taliban, AstraZeneca, Prince Andrew, California oil spill
October 11, 2021: Alaska quake, U.S. and Taliban, AstraZeneca, Prince Andrew, California oil spill
1. An earthquake of magnitude 6.8 struck the Alaska Peninsula region, the European Mediterranean Seismological Centre said.
2. The United States said on Sunday the first face-to-face meeting between senior U.S. and Taliban officials since the hardline group retook power in Afghanistan was "candid and professional" and that the U.S. side reiterated that the Taliban would be judged on their actions, not just their words.
3. AstraZeneca's experimental COVID-19 drug has helped cut the risk of severe disease or death in a late-stage study, the British drug maker said, a boost to its efforts to develop coronavirus medicines beyond vaccines.
4. British police said they would be taking no further action after conducting a review of evidence relating to sex crime allegations against Queen Elizabeth's son, Prince Andrew, and the late U.S. financier Jeffrey Epstein.
5. Beaches in a southern California city that were shut because of an oil spill last week are set to reopen, authorities said in a statement.
#Alaska
#Earthquake
#UnitedStates
#Taliban
#Afghanistan
#AstraZeneca
#Covid19
#UnitedKingdom
#BritishPolice
#PrinceAndrew
#Epstein
#QueenElizabeth
#Headlines
#MorningNews
#Business
#News
#Reuters
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