Как разделить строку с shell-командой на отдельные аргументы в виде списка?
Если сделать просто сплит по пробелу то получим то что надо, кроме случаев со вставками текста с пробелами. Например так:
>>> '-arg "I Am Groot"'.split(' ')
['-arg', '"I', 'Am', 'Groot"']
Чтобы учитывать текст в кавычках как единый аргумент можно воспользоваться функцией shlex.split()
Кто читает мой канал давно, уже в курсе.
А что делать, если нужно обратное действие? Объединить аргументы из списка в строку и при этом добавить кавычки в аргумент с пробелами.
Конечно, если вы используете subprocess то он сам всё разрулит. Но если вам нужна именно команда одной строкой, то можно воспользоваться готовой функцией в том же subprocess.
>>> from subprocess import list2cmdline
>>> list2cmdline(['-arg', 'I Am Groot'])
'-arg "I Am Groot"'
Он также позаботится об экранировании уже имеющихся кавычек
>>> list2cmdline(['-arg', 'I Am "Groot"'])
'-arg "I Am \"Groot\""'
А вот так он может "схлопнуть" в команду JSON
>>> list2cmdline(['--json', json.dumps({'key': 'value'})])
'--json "{\"key\": \"value\"}"'
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Возможно кто-то спросит, а зачем соединять аргументы в строку если subprocess сам это сделает а os.system не наш путь?
Мне как-то потребовалось отправлять команду на удалённое выполнение и в API поддерживалось указание команды только строкой. Так что всякое бывает)
#libs#basic
🇷🇺🌊🌊🌊🇮🇳 Honorary Consul of Russia in Trivandrum Ratheesh Nair has arrived in Iran as part of the "Voyage@555" project dedicated to the journey of Russian ancient merchant Afanasy Nikitin.
🤝 He had a number of significant meetings, including separate talks with Aleksey Dedov, Russian Ambassador to Iran, and Lilia Pankina, Representative of Rossotrudnichestvo, Father Varlaam, clergyman of Tehran's St Nicholas Cathedral, as well as Russian compatriots.
🗓 A separate meeting with Russian linguists in Tehran is planned.
🟣The initiative is implemented with the support of Rossotrudnichestvo, the Russian MFA, the Russian Geographical Society, the Russian Embassy in India and the "Russkiy Mir" Foundation.
🟣Sponsors — Sber, Rosatom.
#Voyage555
#RussiaIndia
#DruzhbaDosti
#AfanasyNikitin
#JourneyBeyondThreeSeas
🇷🇺🌊🌊🌊
🇮🇳 On September 2, Ratish Nair, Honorary Consul of Russia in Trivandrum (Karnataka, India), began a journey along the route of Afanasy Nikitin. The ambitious project is dedicated to the 555th anniversary of the famous "Journey Beyond Three Seas".
📍 The starting point of the journey was the embankment named after the famous Russian traveler Afansy Nikitin in Tver.
⚡️ Ratish Nair met Senator of the Federation Council of Russia from the Tver Region Lyudmila Skakovskaya and Rector of Tver State University Sergei Smirnov.
I am sure that this is a wonderful undertaking - repeating the route of the Tver merchant Afanasy Nikitin. This will help educational and outreach work, draw attention to the traveler's personality, and strengthen ties between our countries. I am sure that in our country, preserving and studying history is one of the most important areas of work,
the Senator emphasized.
Even in India, not everyone knows that Afanasy Nikitin is the first foreigner who came to our country for peaceful purposes. Friendly relations between India and Russia should be strengthened. This is the main goal of my trip. I am sure that the trip, repeating the path of the Russian traveler, will help to show Russia as it is and open it to foreigners without speculation and fakes,
said Ratish Nair.
🗣The meeting participants discussed the opening of Russian online educational courses in Russian in the Indian state of Karnataka, as well as other educational initiatives.
🗺 The head of the Russian House in Trivandrum will visit four more countries after Russia. His route, like 555 years ago, will lie from Tver to Astrakhan along the Volga river, then by car to Derbent, from there to
🇦🇿Azerbaijan, then to
🇮🇷 Iran, from there by plane to
🇴🇲 Oman, and then to
🇮🇳 India.
This project is organized by #Rossotrudnichestvo, the Russian Ministry of Foreign Affairs (#MFA), the #RusskiyMirFoundation, and the Russian Geographical Society (#RGS, #RGO), with #Rosatom and #Sber as partners.
#RussianHouse#RussianHouseTrivandrum#JourneyBeyondThreeSeas
#Voyage555