import sys module

it is later used when calling sys.exit()

Signed-off-by: Miroslav Suchy <miroslav@suchy.cz>
Signed-off-by: David Sommerseth <dazo@users.sourceforge.net>

Author: xsuchy

setup.py

@@ -2,6 +2,7 @@
 
 from distutils.core import setup, Extension
 import commands
+import sys
 
 ethtool = Extension('ethtool',
 		    sources = ['python-ethtool/ethtool.c',