I have the following Python code in one of the python otl which runs ok in windows and linux but not in Mac OS 10.6.6:

# Create the OCONV command string
command = ‘oconv’ + ‘ ’ + ‘plastic_mat_file + ’ ‘ + environ_file + ’ ‘ + geom_file + ’ ‘ + ’>' + ‘ ’ + oct_file

# Execute the command
os.system(command)

My houdini is 11.0.658 which uses Python 2.6.1 whereas my Mac OS installed a Python 2.6.5.

Is the different version of Python causing the problem?

or has os.system() module has been replaced by other module in Python 2.6.5?


Thanks!

sorry, I figured it out.

it is because the Mac OS system didn't know where the ‘oconv’ command is.

by copy the ‘oconv’ command to /usr/bin the python node works well now.

so it's a problem with my software installation in Mac OS and it's nothing to do with Python or Houdini.