Первая директория в sys.path
🔸 Когда вы запускаете Python-интерпретатор в интерактивном режиме, в системные пути (sys.path) в самое начало добавляется текущая рабочая директория
>>> for path in sys.path:
... print(f'"{path}"')
""
"/usr/lib/python37.zip"
"/usr/lib/python3.7"
...
Первая строка пустая, что и означает текущую рабочую директорию.
🔸 Если вы запускаете интерпретатор передавая скрипт как аргумент, то история получается иная. На первом месте будет директория в которой располагается скрипт. А текущая рабочая директория игнорируется.
Пишем скрипт с таким содержанием:
# script.py
import sys
for path in sys.path:
print(f'"{path}"')
Запускаем
python3 /home/user/dev/script.py
Получаем
"/home/user/dev"
"/usr/lib/python37.zip"
"/usr/lib/python3.7"
...
🔸 Если вы запускаете скрипт по имени модуля то на первом месте будет домашняя директория текущего юзера
python3 -m script
"/home/user"
"/usr/lib/python37.zip"
"/usr/lib/python3.7"
...
Скрипт должен быть доступен для импорта
На что это влияет?
На видимость модулей для импорта. Если вы ждёте, что, запустив скрипт по пути, сможете импортировать модули из текущей рабочей директории, то вы ошибаетесь. Придётся добавлять путь os.getcwd() в sys.path самостоятельно или заранее объявлять переменную PYTHONPATH.
#basic
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If you're a UPSC student and thinking about a Plan B, this could be the perfect opportunity for you. The IISPPR Field Research Fellowship is a one-month, fully online program that allows you to explore the world of qualitative research methods. It's a great way to test your interests and see if research could be your Plan B. The program runs from September 1 to 30, 2024, and you won't need to travel for fieldwork—everything can be done in your own neighborhood. With limited seats, this is a chance to explore new opportunities without a long-term commitment. Apply by August 15
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If you're a UPSC student and thinking about a Plan B, this could be the perfect opportunity for you. The IISPPR Field Research Fellowship is a one-month, fully online program that allows you to explore the world of qualitative research methods. It's a great way to test your interests and see if research could be your Plan B. The program runs from September 1 to 30, 2024, and you won't need to travel for fieldwork—everything can be done in your own neighborhood. With limited seats, this is a chance to explore new opportunities without a long-term commitment. Apply by August 15
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