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
🚨 $ETH Liquidation Map Analysis 🚨
1️⃣ Main Liquidation Zones:
*⬇️ Longs: Big cluster around 2000-2400. Ouch!
*⬆️ Shorts: Noticeable stacks building up starting from 2800 up to 3200
2️⃣ Key Liquidation Levels:
* 2000: Major Long liquidation zone🤯
* 3000-3200: Accumulation of short liquidations 🤔
3️⃣ Imbalance:
*More significant Long liquidations below current price vs. shorts above. Bearish signal?🐻
4️⃣ Potential Price Moves:
* Price could drop to grab liquidity at 2000-2400 before any potential bounce.
* If price goes up, it could trigger a cascade of short liquidations towards 3000-3200🚀
5️⃣ Trader Takeaways:
* Avoid placing stops near 2000, potential for stop hunts! 🚫
* Watch price action around 3000-3200 for breakout/reversal signals.👀
* Consider front-running potential moves near major liquidation zones. 🎯
#ETH#Crypto#Trading#Liquidation#Kingfisher
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🦜💧🎯
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@googlefactss
#Kingfisher#Birds#Nature#Wildlife#Fishing#Conservation