如何从 python 运行 cmd 命令？

Question

I am having problems with running some cmd commands from python script. Found lot of examples and stuff explaining subprocess.run but can't get my scripts running...

I have batch script with commands like:

set PATH=%PATH%;"C:\d\program\program_4\bin"
set PROGRAM_WAS_RUNNING=0

echo Starting PROGRAM (headless)
programd --file "C:\d\projects\project1\tool\program.exe" --dont-breakaway-from-job
if %ERRORLEVEL%==0 goto next0
    echo -- PROGRAM with GUI is running
    set PROGRAM_WAS_RUNNING=1

:next0

.. etc

Tried with this code but won't work:

command = subprocess.run(["set", "PATH=%PATH%;C:\d\program\program_4\bin"])
command = subprocess.run(["set", "PROGRAM_WAS_RUNNING=0"])

Can someone please give an example and explain in short what would be the best way to translate all of these and other similar batch commands into Python? Thanks,

Answer 1

It's Simple

    import os
    os.system("your commands here")

Notepad Example:

>>> import os
>>> os.system("notepad.exe")
0
>>> 

Answer 2

It's import to study 'os' module. It provides some functions to facilitate the interface with Operating System like

os.putenv(key, value)
os.getenv(key, default=None)
os.uname()
os.system(command)