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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: #may
@swift_airdrops · Post #5188 · 11.05.2024 г., 18:50
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@YouTrend · Post #406 · 24.05.2019 г., 09:11
🔴#BREAKING: la Premier britannica Theresa #May ha annunciato che si dimetterà il 7 giugno prossimo.
@Dailyrss · Post #13353 · 19.05.2026 г., 00:45
Wikipedia每日一图（#May 19, 2026）https://ift.tt/kxA8I1U Mundari child in a cattle camp near Terekeka, South Sudan.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13352 · 18.05.2026 г., 00:45
Wikipedia每日一图（#May 18, 2026）https://ift.tt/fzT1KpM Scuol-Motta Naluns, View from Motta Naluns on the environment.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13351 · 17.05.2026 г., 00:45
Wikipedia每日一图（#May 17, 2026）https://ift.tt/8CFaNLj Lemon halves. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13350 · 16.05.2026 г., 00:45
Wikipedia每日一图（#May 16, 2026）https://ift.tt/ixodInV Partially frozen Gurudongmar Lake, a glacial lake located to the north of the Himalayas in the northeast Indian state of Sikkim at an altitude of over 5,150 metres (16,900 ft). The lake is fed by glaciers of the Khangchengyao massif, forms the headwaters of the Teesta river and is considered sacred by Buddhists and Sikhs. Today is Sikkim Day, which commemorates the formation of Sikkim as a state of India in 1975, following a popular referendum and full merger after decades of being a protectorate since 1947.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13349 · 15.05.2026 г., 00:45
Wikipedia每日一图（#May 15, 2026）https://ift.tt/PqiVGuJ Australian brushturkey (Alectura lathami) female, Crater Lakes, Atherton Tableland, Queensland, Australia.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13348 · 14.05.2026 г., 00:45
Wikipedia每日一图（#May 14, 2026）https://ift.tt/TXQ67sq This stained glass window in the Cathedral of Saint Julian of Le Mans (Le Mans, France) depicts the Virgin Mary and the apostles during the Ascension of Jesus. Today is the Feast of the Ascension in Western Christianity.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13347 · 13.05.2026 г., 00:45
Wikipedia每日一图（#May 13, 2026）https://ift.tt/UjxK9Pg This azulejo from the Igreja de São Bento (Ribeira Brava, Madeira, Portugal) depicts Our Lady of Fátima. Today is the feast of Our Lady of Fátima in the Catholic Church and the 110th anniversary of her first apparition to three shepherd children.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13346 · 12.05.2026 г., 00:45
Wikipedia每日一图（#May 12, 2026）https://ift.tt/EpzY47y Aerial view of the ruins of Takht-i-Bahi, a 1st-century CE Buddhist monastery complex located in what was once the ancient Indian region of Gandhara, in the present-day northern Pakistani province of Khyber Pakhtunkhwa. It is representative of Buddhist monastic architecture from its era and the ruins were listed as a World Heritage Site in 1980, with UNESCO describing it as having been "exceptionally well-preserved".. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13345 · 11.05.2026 г., 00:45
Wikipedia每日一图（#May 11, 2026）https://ift.tt/kMs0Z8E Chalcophaps indica (Asian Emerald Dove) in Kuldiha Wildlife Sanctuary, Odisha, India.. 了解更多 . #Wikipedia每日一图
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@Dailyrss · Post #13344 · 10.05.2026 г., 00:45
Wikipedia每日一图（#May 10, 2026）https://ift.tt/82UdYl5 Flower buds in development of a Crocosmia 'Lucifer' (Montbretia). Focus stack of 54 photos.. 了解更多 . #Wikipedia每日一图
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