Python cv2 MSER not working

I have installed cv2 (opencv-3.0.0) on my Windows machine, but unable to access MSER class:

import cv2
cv2.MSER()

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'MSER'

For cv2 installation, I downloaded and extracted opencv-3.0.0.0.exe and then copied cv2.pyd to Ananconda sitepackage directory.

I see couple of post on internet about using cv2.MSER, but I can't figure out what is the issue with my cv2.