In OpenCV 2.3.1 and higher, Python bindings do not have highgui.
import cv2 import cv2.cv as cv
and you're good to go.
import cv2 img = cv2.imread("image name") cv2.imshow("window name", img) cv2.waitKey(0)
You can find more help on OpenCV docs and you could also look at some of the opwncv stuff that I have been doing here.
I hope this helps.