Error running code on ConnectPort X4

When I run any script on ConnectPort X4 I get following error message:

Traceback (most recent call last):
File “WEB/python/dpdsrv.py”, line 7, in ?
import sys, os
ImportError: No module named os

Same error message for all the codes. Can anyone tell me what is the problem?

Do you have Python.zip (http://ftp1.digi.com/support/sampleapplications/40002643_B.zip) loaded into the python folder in your ConnectPort X4, and named “python.zip”?

Thanks charleik i was able to solve this problem