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How can we use opencv cuda module from python?

Hi, I need to use the cv::cuda::HOG from python to get the HOG descriptor from an image. I tried using Python.Boost for creating a wrapper for a C++ function which gets the hog descriptor using opencv cuda module and then importing this function in python. However, I get the following error:ImportError: ../build/lib.linux-x86_64-2.7/ undefined symbol: _ZN2cv4cuda6Stream4NullEv.

Is there any other way to do this?