[root@vm2 ganeshactl (test)]# cat display-exp
#!/usr/bin/env python

import sys, gobject, dbus, dbus.glib

gobject.threads_init()
dbus.glib.init_threads()

# Create a session bus.
bus = dbus.SystemBus()

# Create an object that will proxy for a particular remote object.
mgr = bus.get_object("org.ganesha.nfsd", "/org/ganesha/nfsd/ExportMgr")

# call method
display_exp = mgr.get_dbus_method('DisplayExport',
                                    'org.ganesha.nfsd.exportmgr')

#id, fullpath, pseudopath, tag = display_exp(13)
print display_exp(13)
[root@vm2 ganeshactl (test)]# ./display-exp
(dbus.UInt16(13), dbus.String(u'/gpfs/gpfsA/A'), dbus.String(u'/gpfs/gpfsA/A'), dbus.String(u''))
[root@vm2 ganeshactl (test)]#