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: #saturnus
@MOONIVRSE · Post #49201 · 02.05.2023 г., 12:28
💥💥#Saturnus called Cardigan, Taylor Swift from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦 which is #Awäa💄 just arrived! ★✩★ 𝘭𝘪𝘵𝘵𝘭𝘦 𝘯𝘰𝘵𝘦! ✧˚ 𓂃 If you like this song, thank you and also please don't repost. if you want to repost please send your permission to @Tembush before you repost.
@MOONIVRSE · Post #49198 · 02.05.2023 г., 12:22
💥💥#Saturnus called Tak Ingin Usai, Keisya Levronka from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦 which is #Awäa💄 just arrived! ★✩★ 𝘭𝘪𝘵𝘵𝘭𝘦 𝘯𝘰𝘵𝘦! ✧˚ 𓂃 If you like this song, thank you and also please don't repost. if you want to repost please send your permission to @Tembush before you repost.
@MOONIVRSE · Post #49195 · 02.05.2023 г., 12:21
💥💥#Saturnus called Tak Segampang Itu, Anggi Marito from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦 which is #Awäa💄 just arrived! ★✩★ 𝘭𝘪𝘵𝘵𝘭𝘦 𝘯𝘰𝘵𝘦! ✧˚ 𓂃 If you like this song, thank you and also please don't repost. if you want to repost please send your permission to @Tembush before you repost.
@MOONIVRSE · Post #49192 · 02.05.2023 г., 12:15
💥💥#Saturnus called Sampai Jadi Debu, Banda Neira from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦 which is #Awäa💄 just arrived! ★✩★ 𝘭𝘪𝘵𝘵𝘭𝘦 𝘯𝘰𝘵𝘦! ✧˚ 𓂃 If you like this song, thank you and also please don't repost. if you want to repost please send your permission to @Tembush before you repost.
@MOONIVRSE · Post #48506 · 31.03.2023 г., 09:56
https://t.me/addtheme/uqKFF4Qom9DRfkBh 👩🏻🚀💄: *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 " Wonyoung Theme " from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #Awäa💄. Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
@MOONIVRSE · Post #47769 · 13.02.2023 г., 11:37
👩🏻🚀💄: *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 " Newjeans Minji Username " from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #Awäa l. Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
@MOONIVRSE · Post #47766 · 13.02.2023 г., 11:36
👩🏻🚀💄: *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 " Truffle Username " from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #Awäa l. Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
@MOONIVRSE · Post #47592 · 09.02.2023 г., 12:26
💥💥#Saturnus called I Wanna Be Yours, Arctic Monkey from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦 which is #Awäa💄 just arrived! ★✩★ 𝘭𝘪𝘵𝘵𝘭𝘦 𝘯𝘰𝘵𝘦! ✧˚ 𓂃 If you like this song, thank you and also please don't repost. if you want to repost please send your permission to @Tembush before you repost.
@MOONIVRSE · Post #47589 · 09.02.2023 г., 12:24
💥💥#Saturnus called Hold It In, Treasure from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦 which is #Awäa💄 just arrived! ★✩★ 𝘭𝘪𝘵𝘵𝘭𝘦 𝘯𝘰𝘵𝘦! ✧˚ 𓂃 If you like this song, thank you and also please don't repost. if you want to repost please send your permission to @Tembush before you repost.
@MOONIVRSE · Post #48596 · 02.04.2023 г., 00:17
👩🏻🚀🌙: *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 Haerin icons edit from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #Réuvel. Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
@MOONIVRSE · Post #48592 · 02.04.2023 г., 00:05
👩🏻🚀🌙: *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 Eunchae icons edit from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #Réuvel. Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)
@MOONIVRSE · Post #48586 · 02.04.2023 г., 00:04
👩🏻🚀🌙: *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 Seeun icons edit from our 𝗳𝗿𝗶𝗲𝗻𝗱𝘀 👨👩👧👦, which is #Réuvel. Ah, thank you @moonivrse lets check the licence first! Oh, its only for PU (Personal Use)