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
🌍 The desert climate zone covers about one-fifth of Earth's land, yet some deserts get colder than snowy regions—Antarctica is classified as the world's largest desert by climate. ✨
#climatezones⚡#deserts⚡#earth⚡#geography⚡#nature
👉subscribe Amazing Geography
👉more Channels
🌍 The boundary between different climate zones doesn't always follow straight lines—on mountain slopes, tropical and temperate climates can exist just a few kilometers apart, packed side by side. ✨
#climatezones⚡#biomes⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels
🌍 The humid subtropical climate zone stretches across southeastern continents but also appears in parts of East Asia and South America, helping create lush forests and long growing seasons for crops. ✨
#climatezones⚡#vegetation⚡#agriculture⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels
🌍 The Mediterranean climate zone, found in only a few parts of the world, has mild, rainy winters and hot, dry summers—a combination perfect for growing olives, grapes, and citrus. ✨
#climatezones⚡#Mediterranean⚡#agriculture⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels
🌍 Antarctica’s interior is the only place on Earth with a true polar climate—temperatures rarely rise above freezing, and less precipitation falls each year than in most deserts. ✨
#climatezones⚡#antarctica⚡#extremes⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels
🌍 In the world’s subtropical climate zones, some deserts like the Sahara and Arabian receive less than 2 centimeters of rain a year—making them among the driest places on Earth. ✨
#climatezones⚡#deserts⚡#rainfall⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography🌍
🌍 The humid subtropical climate zone—found in places like southeastern China and the southeastern US—brings hot summers, mild winters, and is prone to sudden, powerful thunderstorms. ✨
#climatezones⚡#weather⚡#regions⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels
🌍 The world’s largest continental climate zone covers central Eurasia, where summers can reach above 40°C and winters drop below –40°C—a giant temperature swing found nowhere else on Earth. ✨
#climatezones⚡#temperature⚡#Eurasia⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels
🌍 Earth’s Mediterranean climate zones, found in places like California and parts of Australia, support massive wildflower blooms after winter rains despite having hot, dry summers. ✨
#climatezones⚡#biomes⚡#vegetation⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels
🌍 The subarctic climate zone stretches across vast parts of Canada and Russia, where winters are so cold that forests are called “taiga”—the world’s largest continuous woodland region. ✨
#climatezones⚡#taiga⚡#forests⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels
🌍 Some climate zones, like the monsoon zone, see one season bringing almost all their annual rain in just a few weeks. This sudden wet season shapes ecosystems and water supplies for millions. ✨
#climatezones⚡#monsoon⚡#rainfall⚡#geography⚡#nature⚡#earth
👉subscribe Amazing Geography
👉more Channels