modified: ri_data.py

modified:   ri_func_dep.py
	modified:   ri_main.py
	modified:   ri_tk_cmd.py
     Because the function sort() return value is not a list. it is return <type 'NoneType'>.so use for k in ri_data.MountPoint.dict{}.keys().sort() must be throw a exception

interface/ri_main.py

@@ -38,7 +38,7 @@ else:
     print 'error: interface xml(%s) does not exist' %itf_xml
     sys.exit(1)
 
-if os.path.isfile(ins_xml):
+if os.path.isfile(ri_data.install_xml):
     ri_data.init_from_xml()
 else:
     ri_data.init()