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Изворен канал @pythonotes · Post #201 · 13 јан.
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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Пребарај: #january
@apkpurechannel · Post #2836 · 24.01.2026 г., 11:19
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@Dailyrss · Post #13245 · 31.01.2026 г., 00:45
Wikipedia每日一图（#January 31, 2026）https://ift.tt/129ov6E Isambard Kingdom Brunel standing before the launching chains of the SS Great Eastern. The ship was launched on this day in 1858.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13244 · 30.01.2026 г., 00:45
Wikipedia每日一图（#January 30, 2026）https://ift.tt/Z0TVbvJ Lake Baikal in winter. Ice ridges near Olkhon island in Pribaikalsky National Park.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13243 · 29.01.2026 г., 00:45
Wikipedia每日一图（#January 29, 2026）https://ift.tt/YMrOJT0 Great Cormorant (Phalacrocorax carbo), Little Egret (Egretta garzetta) and Gadwall (Mareca strepera) in misty Taudaha Lake during winter, near Kathmandu, Nepal.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13242 · 28.01.2026 г., 00:45
Wikipedia每日一图（#January 28, 2026）https://ift.tt/2EM6iKC Sunset over the ice of Brofjorden in Sandvik, Brastad, Lysekil Municipality, Sweden. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13241 · 27.01.2026 г., 00:45
Wikipedia每日一图（#January 27, 2026）https://ift.tt/Msrmcyu “Selection” of Hungarian Jews on the ramp at Auschwitz-II-Birkenau in German-occupied Poland, May/June 1944, during the final phase of the Holocaust. Jews were sent either to forced labor or the gas chambers. 81 years ago today, on January 27, 1945, Auschwitz was liberated by the Red Army. Today is also International Holocaust Remembrance Day.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13240 · 26.01.2026 г., 00:45
Wikipedia每日一图（#January 26, 2026）https://ift.tt/EsDR49p Apple orchards after snowfall in Sangla in the northern Indian state of Himachal Pradesh. India has the second largest area under apple cultivation in the world and is the fifth largest producer of the fruit globally. More than 90% of India's apple production comes from just two of its northern Himalayan states: Jammu and Kashmir, and Himachal Pradesh. Today is Republic Day in India.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13239 · 25.01.2026 г., 00:45
Wikipedia每日一图（#January 25, 2026）https://ift.tt/JzivhFB Window in a former joinery workshop in Beilstein, Germany. Hop has grown into the workshop and has draped its tendrils before this window.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13238 · 24.01.2026 г., 00:45
Wikipedia每日一图（#January 24, 2026）https://ift.tt/uP9JQ1U The entrance of the locomotive Hrvatske Željeznice class 2044 with a local train to Zagreb between Turčin and Sveti Ilija, Croatia. July 2009. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13237 · 23.01.2026 г., 00:45
Wikipedia每日一图（#January 23, 2026）https://ift.tt/oNaVYGk Northwest view of Yugar village and fields, viewed from Phuktal Gompa. Elevation 3,850 m (12,630 ft)), on the left bank of the Tsarap River (elev. 3,820 m (12,530 ft)). In this arid terrain above the tree line, villagers rely on water from the snow-fed Phu Nala (flowing from centre to bottom) for their fields. Zanskar, Ladakh, India. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13236 · 22.01.2026 г., 00:45
Wikipedia每日一图（#January 22, 2026）https://ift.tt/4AIKm1L Aerial view of 2023 Bishwa Ijtema in Bangladesh. With 5 million adherents, Bishwa Ijtema is the second-largest Muslim gathering in the world.. 了解更多 . #Wikipedia每日一图
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