使用Python用终端运行一个文件

Question

I am looking for a way to run a file through the Terminal, but instead of typing it in, I want to run a python script that runs the file through the Terminal for me.

This code should run through the terminal:

cd LCD-show
sudo ./LCD35-show

I already tried this and run it in Python:

import os
os.system("./LCD35-show")

But that does not work. How can I solve this problem?

Answer 1

Try this on for size:

import subprocess
p1 = subprocess.run("cd LCD-show ; sudo ./LCD35-show", shell=True, text=True, capture_output=True)
print(p1.returncode)
print(p1.stdout)
print(p1.stderr)

The shell=True option runs the whole arg thru the shell so multiple commands separated by semicolon work. text=True means treat stdout and stderr as strings, not bytes. Lastly, capture_output=True means actually capture stdout and stderr as properties.

If you have a whole file of commands in myFile.sh , it's basically the same thing. Just be aware of exec permissions on myFile.sh and any PATH considerations; you might have to do ./myFile.sh :

p1 = subprocess.run("myFile.sh", shell=True, text=True, capture_output=True)