abidrahmank/OpenCV2-Python-Tutorials — pull request #33 by MJafarMashhadi (2014-09-04 11:58:27+00:00)
Title: Resolved compile error in Hough Circles method

`HOUGH_GRADIENT` is not defined in cv2, its in `cv2.cv.CV_HOUGH_GRADIENT`. changed that piece of example