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
#Update: ‘We leave these accusations to the judgment of conscience’: #Wazema Media rebuffs Media Authority claims after announcement to return license
Addis Abeba – Wazema Media (Wazema Radio) has issued a response to the Ethiopian Media Authority (EMA), clarifying that the return of its operating license was a result of a direct order and rejecting allegations of ethical misconduct.
In a statement released late Saturday, the media outlet confirmed it had complied with the regulator’s directive while expressing deep disappointment over the measure.
“As per the Authority’s order on Thursday to return our license, we have done so today. The [EMA] statement was released within hours of us doing this,” the management of Wazema stated, adding the compliance to return the license was based on the order from the regulator.
“We do not believe the measure is correct by any standard. It has saddened us,” the statement further said.
https://www.facebook.com/share/p/1HMEgBLLb4/?mibextid=wwXIfr
News: #Ethiopian Media Authority announces return of #Wazema Media operating license on allegations of ‘ethical violations’
Addis Abeba – The Ethiopian Media Authority (#EMA) announced today that Wazema Media, commonly known as Wazema Radio, has returned its operational license in Ethiopia.
In a statement released on Saturday, the Authority claimed the media outlet returned its recognition and license because it was "unwilling to work while respecting the Ethiopian Constitution and the Media Proclamation, as well as guidelines and professional ethics."
The EMA, which had granted Wazema Media an online media license, stated that its decision followed continuous monitoring and "tips and comments" received from the public.
According to the regulator, Wazema’s reporting was found to be "contrary to the country's national interest, lacking balance, [and] failing to include responses from federal and regional governments."
The Authority further alleged that...
https://www.facebook.com/share/p/1HzHJemEWM/
News: “Closing independent media outlets like #Wazema and #Addis_Standard is an attack on freedom of expression and democratic principles” – #EPRP
The #Ethiopian People's Revolutionary Party (EPRP) has condemned the closure of independent media institutions, describing actions against outlets including Wazema and Addis Standard as “an attack on freedom of expression and democratic principles,” as the Committee to Protect Journalists (#CPJ) called on authorities to immediately restore Addis Standard’s registration, warning that the move amounts to retaliation rather than regulation.
In a statement issued today, 25 February 2026, the party said shutting down independent media, revoking licenses of international outlets, and harassing media professionals undermines the country’s democratic trajectory.
“Preaching free and democratic elections while banning media, arresting and chasing away journalists, and locking down the civic space is mocking the public...
Read more: https://addisstandard.com/?p=55397