--- a/python/compute-homography.py	Fri Jul 06 01:03:52 2012 -0400
+++ b/python/compute-homography.py	Fri Jul 06 01:08:38 2012 -0400
@@ -52,7 +52,7 @@
 # cvFindHomography(imagePoints, worldPoints, H);
 
 
-if '--help' in options.keys() or '-h' in options.keys() or len(args) == 0::
+if '--help' in options.keys() or '-h' in options.keys() or len(args) == 0:
     print('Usage: {0} --help|-h [--video_frame <video frame filename>] [<point_correspondences.txt>]'.format(sys.argv[0]))
     print('''The positional argument should be the name
  of a file containing at least 4 non-colinear point coordinates (point correspondences: