i couldn't use os.system() to execute a command as it is in the terminal.

I only get a return value of 256 and the file “scene.oct” is not generated from the “oconv” command string.

the error message is shown below.

Can anybody advise on the source of the error?

Thank you!

there's no such error when i try on Windows7.

Is it related to the python i have on my Mac?

Advices are greatly appreciated!

I think it's a platform difference for Python's os.system() method, consult the Python documentation.

I don't know if it will work better with OSX but you can try: subprocess.call()
http://www.pythonforbeginners.com/os/subprocess-for-system-administrators [pythonforbeginners.com]

thank you very much! I'll try subprocess