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Изворен канал @pythonotes · Post #303 · 27 дек.

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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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@sspzone · Post #17 · 26.01.2022 г., 15:29

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Basic concept of Quadrant. https://youtu.be/LJOgh9jYB_w Telegram link..... https://t.me/sspzone Class 10th Trigonometry https://youtu.be/xdB3O4akaN8 Class-11th Exercise 3.2 https://youtu.be/viaNEmy8I5A Class-8th Exercise 2.1 https://youtu.be/KKVtok9Vpjc Class-8th Exercise 2.2 https://youtu.be/N_0-VOl3yU0 Class-11th Exercise 3.3 part 2 https://youtu.be/T4ohGKEdAl4 Class-9th Heron's फार्मूला https://youtu.be/cNO039XQSK4 #Subscribe

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@airdrop_market_pro · Post #378 · 01.10.2023 г., 14:26

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https://www.youtube.com/shorts/k6QAw_6t3zo Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe https://mortyinu.net/app/index.html

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@airdrop_nft1 · Post #376 · 01.10.2023 г., 14:26

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https://www.youtube.com/shorts/k6QAw_6t3zo Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe https://mortyinu.net/app/index.html

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@airdrop_market_pro · Post #375 · 27.09.2023 г., 22:03

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https://www.youtube.com/shorts/dnXITUo1c5c?feature=share Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe https://mortyinu.net/app/index.html

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@airdrop_market_pro · Post #373 · 25.09.2023 г., 22:51

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Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe

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@airdrop_nft1 · Post #373 · 27.09.2023 г., 22:03

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https://www.youtube.com/shorts/dnXITUo1c5c?feature=share Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe https://mortyinu.net/app/index.html

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@airdrop_nft1 · Post #371 · 25.09.2023 г., 22:51

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Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe

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@free_airdrop_nn · Post #206 · 01.10.2023 г., 14:28

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https://www.youtube.com/shorts/k6QAw_6t3zo Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe https://mortyinu.net/app/index.html

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@free_airdrop_nn · Post #204 · 27.09.2023 г., 22:05

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https://www.youtube.com/shorts/dnXITUo1c5c?feature=share Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe https://mortyinu.net/app/index.html

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@free_airdrop_nn · Post #203 · 25.09.2023 г., 22:51

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Hello, friends! We create a new video on this channel every day about Morty Inu (MINU)! Join us, subscribe, and share this video to accelerate the pre-sale and help us build the MORTY empire together! Your support is incredibly important to us. Thank you for your likes and shares! 🚀🌟#MORTY#MINU#Subscribe

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DARSHNA CLASSES 📚

@sspzone · Post #20 · 28.01.2022 г., 07:51

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Basic concept of Quadrant. https://youtu.be/LJOgh9jYB_w Telegram link..... https://t.me/sspzone Class 10th Trigonometry https://youtu.be/xdB3O4akaN8 Class-11th Exercise 3.2 https://youtu.be/viaNEmy8I5A Class-8th Exercise 2.1 https://youtu.be/KKVtok9Vpjc Class-8th Exercise 2.2 https://youtu.be/N_0-VOl3yU0 Class-11th Exercise 3.3 part 2 https://youtu.be/T4ohGKEdAl4 Class-9th Heron's फार्मूला https://youtu.be/cNO039XQSK4 Class-10th Exercise 13.2 part 2 https://youtu.be/_M1-HefeSqE Class-11th Exercise 3.3 Part 4 https://youtu.be/c56EO_P_tKc #Subscribe #Share #Like #SSPZONE #Sumitredhu #Comments

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@TG_index_channel · Post #1348 · 27.08.2020 г., 14:09

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標題：Hololive 實況訂閱機器人 類別：#公開#機器人#英文 分類：#影音#動漫 標籤：#subscribe#ホロライブ#訂閱#hololive#vtuber#youtube 簡介：訂閱 Hololive 用，非官方 Telegram 機器人。 ✨可接收來賓情報。 例如訂閱心心的話，心心參加公主頻道時，心豚也會收到通知 ♥️ 中文說明：https://wabilin.github.io/holo-subscription/docs/zh-tw English site: https://wabilin.github.io/holo-subscription/

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