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\"}"'
_______________
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
😁Precision Wrestling For Jiu Jitsu by Shawn Melanson😁
➡️This advanced instructional series breaks down high-level wrestling moves designed to seamlessly integrate into BJJ scenarios, giving you a strategic edge on the mat.
➡️Shawn Melanson, a renowned grappling coach, shares his expert system focusing on precision, control, and high-percentage finishes that have been proven to work time and time again in competition
$79😍$9.99😍
❗️Channel Info and FAQ (MUST CHECK BEFORE BUY)❗️
📱Payment: 📱📱📱
💰Submeta FOR FREE
👑MasterClass
✈️@bjjfanaticsinstructionals
#ShawnMelanson#Takedowns#NoGi#IBJJF
💁♀️Buy
💁♀️
😁Precision Sweeps And Wrestle Ups From The Seated Position By Shawn Melanson😁
➡️Master the art of disrupting standing passers with surgical precision. In his fourth and most dynamic instructional to date, best-selling BJJ coach Shawn Melanson delivers a comprehensive system for attacking from the seated guard — blending positional off-balancing, precision timing, and relentless wrestle-ups to systematically frustrate and dismantle your opponent’s passing game.
➡️Shut down standing passers with precision sweeps, wrestle-ups, and off-balancing tactics from seated guard in Shawn Melanson’s latest high-level BJJ instructional.
$79😍$9.99😍
❗️Channel Info and FAQ (MUST CHECK BEFORE BUY)❗️
📱Payment: 📱📱📱
💰Submeta FOR FREE
🌈UFC Picks
👑MasterClass
✈️@bjjfanaticsinstructionals
#ShawnMelanson#Sweeps#NoGi#WrestleUp
💁♀️Buy
💁♀️
😁Precision Attacks and Sweeps From Butterfly Half and Knee Shield by Shawn Melanson😁
➡️Shawn Melanson returns with his fifth installment for BJJ Fanatics, and this time he’s pulling back the curtain on the sneaky, frustrating, and relentlessly effective guard system that’s been quietly dismantling opponents at every level.
➡️Melanson's method breaks away from flashy tricks and focuses on the real structure behind guard retention, off-balancing, and transitioning from defense to decisive offense
̶$̶7̶9̶😍$9.99😍
❗️Channel Info and FAQ (MUST CHECK BEFORE BUY)❗️
📱Payment: 📱📱📱
💰Submeta FOR FREE
🌈UFC Picks
👑MasterClass
✈️@bjjfanaticsinstructionals
#ShawnMelanson#HalfGuard#NoGi#Butterfly
💁♀️Buy
💁♀️
😁Modernized Headquarters Passing By Shawn Melanson😁
➡️Unlock the secrets to one of the most dominant and versatile passing positions in Brazilian Jiu-Jitsu with Modernized Headquarters Passing by Shawn Melanson
➡️As an up-and-coming No-Gi competitor who has conquered tournaments at the highest levels, Shawn brings his proven expertise directly to your training. In this comprehensive instructional series, he breaks down the Headquarters Position, a game-changing technique that can be used against nearly every guard in the sport.
➡️With step-by-step guidance, Shawn reveals how to enter, control, and pass from the Headquarters Position, offering you a wide array of strategic options to dominate your opponent.
$79😍$9.99😍
❗️Channel Info and FAQ (MUST CHECK BEFORE BUY)❗️
📱Payment: 📱📱📱
💰Submeta FOR FREE
🌈UFC Picks
👑MasterClass
✈️@bjjfanaticsinstructionals
#ShawnMelanson#BJJFanatics#GuardPassing#NoGi#Headquarters
💁♀️Buy
💁♀️