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
The majority of young Americans want to leave the country, a new report from the American Psychological Association showed that 63% of Americans between the ages of 18 and 34 were thinking about emigrating. 🌍
There are 53% of such parents. In the whole country, anxiety is even higher: 76% of adults admitted that they are worried about the state of the country — political division, instability and a sense of uncertainty about the future. Many of the respondents feel isolated and tired. 😟
People who are particularly hard—pressed by the division in the country are more likely to complain of anxiety and health problems - they have higher levels of chronic diseases and fatigue. 🩺
People with high levels of loneliness are more likely to cancel appointments, sleep poorly, and stop taking care of themselves. 🛌
69% of Americans are worried about fakes, 57% are worried about the growing influence of AI, especially young people and parents. 🤖
But 84% are confident that they will be able to build a good life, and 73% believe that they can change the country's future for the better. 💪
#Youth#Poll
👂More on Trump's Ear
President Donald Trump's administration is now aiming to make the voting process harder for college-age young adults ahead of November's midterm elections.
That's according to a Monday op-ed by MS NOW's Ja'han Jones, who wrote that the Trump administration's Department of Education may be exploring a way to curb young voter turnout with a newly announced investigation into Tufts University. The Education Department announced its new probe in a recent press release, saying the Boston, Massachusetts-based school may have been "illegally sharing college students’ data with third parties to influence elections."
The investigation is centered on Tufts' National Study of Learning, Voting, and Engagement (NSLVE). Tufts describes the NSLVE as "a service to over 1,000 U.S. colleges and universities that can use it to understand and improve their student voting rates." However, the Trump administration is saying the program could have potentially violated the Family Educational Rights and Privacy Act.
"American colleges and universities should be focused on teaching, learning, and research — not influencing elections," Education Secretary Linda McMahon stated. "The Biden Administration, with little to no regard for student privacy laws, openly encouraged institutions to share and utilize student data in order to target certain populations."
#Trump#Elections#Youth
👂More on Trump's Ear ⚠️
🌍 More than 40% of the world's population is under age 25—a record share of young people. This youth wave is largest in Africa and South Asia, shaping future trends worldwide. ✨
#demography⚡#youth⚡#geography⚡#nature⚡#earth
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🌐 Organized by youth, for youth: the World Bank Group #Youth Summit is back!
💡 The 11th edition of the World Bank Group Youth Summit is on the theme of Digital Transformation and will engage thousands of participants from around the world.
🧭 The Summit is the largest worldwide annual gathering of youth (aged 18-35) hosted by the World Bank Group.
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