How to pass args to myprog.exe

[Fran_3]

I've Googled this but it's been a long day and maybe some kind soul will share some simple example code so I can get out of this chair for today :-)

I need simple examples of launching an external .exe file and passing it an argument or arguments?

I think you use subprocess and pOpen but I've yet to find a simple example for say the following...

If run from the command line...

# example 1 - launch a program and pass it some text as an argument
> myprog.exe arg1

# example 2 - launch a program and pass it a file
> vlc test.wav

# example 3 - launch a program and pass it some arguments and get the results
> set /a 2+3
> 5

How to do this from Python?

thanks for any help