Python + bash
Если вам часто требуется запускать shell команды из Python-кода, какой способ вы используете?
Самый низкоуровневый это функция os.system(), либо os.popen(). Рекомендованный способ это subprocess.call(). Но это всё еще достаточно неудобно.
Советую обратить своё внимание на очень крутую библиотеку sh.
Что она умеет?
🔸 удобный синтаксис вызова команд как функций
# os
import os
os.system("tar cvf demo.tar ~/")
# subprocess
import subprocess
subprocess.call(['tar', 'cvf', 'demo.tar', '~/'])
# sh
import sh
sh.tar('cvf', 'demo.tar', "~/")
🔸 простое создание функции-алиаса для длинной команды
fn = sh.lsof.bake('-i', '-P', '-n')
output = sh.grep(fn(), 'LISTEN')
в этом примере также задействован пайпинг
🔸 удобный вызов команд от sudo
with sh.contrib.sudo:
print(ls("/root"))
Такой запрос спросит пароль. Чтобы это работало нужно соответствующим способом настроить юзера.
А вот вариант с вводом пароля через код.
password = "secret"
sudo = sh.sudo.bake("-S", _in=password+"\n")
print(sudo.ls("/root"))
Это не все фишки. Больше интересных примеров смотрите в документации.
Специально для Windows💀 юзеров
#libs#linux
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#BSW is currently in a downtrend and is trading below its 200-day exponential moving average. It has broken down below its support level and is retracing. It is expected to test the support zone before declining further. The swing low level will be tested.
TF : 2h
Entry : $0.0417
Target : $0.0319
SL : $0.0487
#BSW/USDT analysis :
#BSW is currently in an uptrend and is undergoing a correction phase. It is expected that the price will retrace to the support zone for a retest before continuing its bullish momentum. It is recommended to wait for this retest of the support zone before considering any long entry positions.
TF : 2H
Entry : $0.0900
Target : $0.1070
SL : $0.0820
#BSW/USDT analysis :
#BSW is in a downtrend, making lower lows (LLs) and lower highs (LHs), and is trading below the 200 EMA. The price has broken and retested the previous support zone, which is now acting as resistance. The price is likely to continue its bearish momentum and test new lows. Wait for a pullback for short entry.
TF : 15min
Entry : $0.0571
Target : $0.0550
SL : $0.0583
#BSW/USDT analysis :
#BSW has recently tested the resistance zone in a correction phase. It is expected that the price will face rejection at this level and continue its downward movement. It is recommended to wait for the price to break below the $0.0469 level before considering an entry point.
TF : 2H
Entry : $0.0469
Target : $0.0410
SL : $0.0504
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