Мы уже знаем, что на текущую сессию интерпретатора изменение PYTHONPATH никак не повлияет. Но если вы запустите дочерний процесс, то он унаследует окружение текущего процесса, а значит и изменения в любых переменных будут на него влиять.
Вот небольшой пример:
Объявляем переменную
user@host:~$ export PYTHONPATH=/path1
Запускаем интерпретатор
user@host:~$ python3
Проверим что в sys.path
>>> import sys
>>> print(sys.path)
['', '/path1', '/usr/lib/...', ...]
Добавляем что-то в переменную
>>> import os
>>> os.emviron['PYTHONPATH'] = '/path1:/path2'
>>> print(sys.path)
['', '/path1', '/usr/lib/...', ...]
Изменений нет. Но давайте запустим дочерний процесс и посмотрим там
>>> os.system('python3')
# теперь мы находимся в другом процессе
>>> import sys
>>> print(sys.path)
['', '/path1', '/path2', '/usr/lib/...', ...]
Тоже самое будет и с subprocess, так как по умолчанию текущее окружение тоже наследуется.
>>> import subprocess
>>> subprocess.call(['python3', '-c', 'import sys;print(sys.path)'])
['', '/path1', '/path2', '/usr/lib/...', ...]
______________________
Лучшей практикой является передача энвайронмента явно через аргумент env!
import subprocess
subprocess.call(cmd, env={'PYTHONPATH': '...'})
Это поможет точно понимать какое окружение будет у запускаемого процесса и при этом не изменять окружение текущего процесса.
#basic
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🧡 Nargis Kosimova, Director of the “Ekolog” Public Association, has been awarded the “Mo‘tabar Ayol” badge
In accordance with the Decree of the President of the Republic of Uzbekistan dated February 2, 2018, No. PF-5325, “On measures to fundamentally improve activities in the field of supporting women and strengthening the family institution,” the “Mo‘tabar Ayol” badge was established.
This award is given to women who have shown activity and initiative in public and state life, contributed through their effective work to the stability and prosperity of families, the protection of motherhood and childhood, and have set an exemplary example in raising healthy and well-rounded generations in the spirit of patriotism and loyalty to the ideals of independence, promoting moral and ethical values locally, and broadly spreading national values.
The “Mo‘tabar Ayol” badge is presented by the Women’s Committee of Uzbekistan on the eve of International Women’s Day, March 8.
🌿 The team of the “Ekolog” Public Association sincerely congratulates Nargis Kosimova on receiving this prestigious award!
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Congratulations to the fourteen train driver trainees who have successfully completed their training!
January 24, 2024(EDR); During their one year training period, the trainees have successfully finished their theoretical and practical training. That provided by the Ethiopian-Djibouti Railway Capacity Building program’s fourth round.
Today, they took their Ministry of Transport and Logistics qualification exam, and now one step closer to obtaining their licenses and starting their careers as train drivers.
We are incredibly proud of their hard work and commitment, and we wish them all the best in their future endeavors!
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Matbuot va ommaviy axborot vositalari xodimlari kuni muborak boʻlsin!
Hurmatli ommaviy axborot vositalari xodimlari, sizlarni "27-iyun – Matbuot va ommaviy axborot vositalari xodimlari kuni” munosabati bilan tabriklaymiz.
Ushbu quvonchli ayyomda barchangizga sihat-salomatlik, sharafli faoliyatingizda yangi yutuq va omadlar, xonadoningizga tinchlik va fayzu baraka tilaymiz.
Kasb bayramingiz muborak boʻlsin!
Hurmat bilan,
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