TGINSIGHT SIMILAR POSTS
Изворен канал @pythonotes · Post #303 · 27 дек.
Наверняка вы замечали, что в Python есть удобная функция для получения переменной окружения os.getenv(NAME) И её "сестра" для создания или изменения переменных окружения os.putenv(NAME, VALUE) Но почему-то putenv() не работает как должно. Энвайромент не обновляется! os.putenv('MYVAR', '1') print(os.getenv('MYVAR')) ... и ничего 😴 Почему так? На самом деле энвайромент обновляется, но это значение не добавляется в словарь os.environ. Откройте исходник функции os.getenv(). Это просто шорткат для os.environ.get() В то время как putenv() это built-in С-функция. Словарь os.environ (или точней класс из MutableMapping) создаётся из энвайромента в момент инициализации. Функция putenv() самостоятельно его не изменяет. В тоже время, когда вы создаёте или изменяете ключ в os.environ, автоматически вызывается putenv() в методе __setitem__(). То есть, технически putenv() всё делает верно, но в os.environ это не отражается. Можно проверить так: >>> os.putenv('MYVAR', '123') >>> os.system('python -c "import os;print(os.getenv(\'MYVAR\'))"') 123 Я объявил переменную в текущем процессе и вызвал дочерний процесс, который её унаследовал и получил в составе os.environ. Аналогично при удалении переменной вызывается еще одна built-in функция unsetenv(), удаляющая переменную из системы. Итого ▫️ Удобней всего явно обновлять переменные через os.environ ▫️ Есть способ неявно создать/удалить переменную через putenv/unsetenv, что не повлияет на os.environ но изменит энвайромент и передаст изменения сабпроцессам. Но так лучше не делать! ▫️os.environ это просто обертка для built-in функций putenv() и unsetenv(). #basic
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Пребарај: #eleven
@MOONIVRSE · Post #49019 · 17.04.2023 г., 11:11
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Karina aespa from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
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@MOONIVRSE · Post #49017 · 17.04.2023 г., 11:09
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Hanni new jeans from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
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@MOONIVRSE · Post #48193 · 27.03.2023 г., 04:56
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Mina twice from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
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@MOONIVRSE · Post #48191 · 27.03.2023 г., 04:53
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Haerin newjeans from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
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@MOONIVRSE · Post #48171 · 26.03.2023 г., 15:54
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Minji newjeans from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
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@MOONIVRSE · Post #48160 · 26.03.2023 г., 15:02
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Jennie blackpink from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
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@MOONIVRSE · Post #48158 · 26.03.2023 г., 14:57
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #SpaceShip called Karina aespa from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
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@MOONIVRSE · Post #48168 · 26.03.2023 г., 15:39
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #BOOM called Ryujin × Haechan from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use
@MOONIVRSE · Post #48166 · 26.03.2023 г., 15:26
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #BOOM called Taeyong × Dita from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use
@MOONIVRSE · Post #48164 · 26.03.2023 г., 15:22
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #BOOM called Ryujin × Haechan from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use
@MOONIVRSE · Post #48162 · 26.03.2023 г., 15:20
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #BOOM called Jennie × Taehyung from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use
@MOONIVRSE · Post #48195 · 27.03.2023 г., 06:51
👩🏻🚀🪐: *𝗕𝗢𝗢𝗠* 🤯🤯 Woah 😵💫😵... What was that 🤔🤔? Its was a super-duper big *boom* 💥💥 that just come to our 𝗯𝗲𝗮𝘂𝘁𝗶𝗳𝘂𝗹 𝗺𝗼𝗼𝗻 🌑🌕, and look. They giving us a super-duper adorable 𝗽𝗮𝗰𝗸𝗮𝗴𝗲 📦📦, lets check it now! Ooh 😯😯, its a #Saturnus called Miyeon cyber theme from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #eleven . Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)