[funinit.wordpress.com] How to use setStripe?

core.py

from ctypes import CDLL
lustreFunc = CDLL("/etc/irods/setStripe.so")
[...]
def Pyrule_resource_mkdir_post(rule_args,callback,rei):
    dataObj = splitKV(rule_args[0])
    physPath = str(dataObj['physical_path'])
    rc = lustreFunc.setStripe(physPath, pool)
    if rc:
        callback.writeLine("serverLog","setting pool failed with:'"+str(rc)+"'");