createStereoBM, does it or does it not exist?

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The usual drill, I downloaded and installed OpenCV 3.2 on windows, moved the python hooks into site-packages, ran a few simple examples to find reports such as:

Traceback (most recent call last): File "D:\python\webcam.py", line 10, in <module> stereo = cv2.createStereoBM(numDisparities=16, blockSize=15) AttributeError: 'module' object has no attribute 'createStereoBM'

Example from: http://opencv-python-tutroals.readthe...

Now evidence is createStereoBM does exist given: http://docs.opencv.org/3.0-beta/modul...

Is there something missing in the import statement for cv2 perhaps?

I am running on windows 10 via python 2.7.9 (stackless).

Cheers, B