I have installed opencv, with anaconda also. But still, it showing it as module error. I was searched many sites, but all sites are giving an answer that install OpenCV.
>>> import cv2
>>> s=cv2.SIFT()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: module 'cv2.cv2' has no attribute 'SIFT'