How to use MOG in python openCV 3.2.0 version [closed]

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Traceback (most recent call last):
  File "ex1.py", line 6, in <module>
    fgbg = cv2.bgsegm.createBackgroundSubtractorMOG()
AttributeError: 'module' object has no attribute 'bgsegm'

I even build the opencv_contrib files as well. but still when i type

python
import cv2
help(cv2)

the bgsegm module not seems to be there. cmake output

-- Detected version of GNU GCC: 54 (504)
-- FP16: Feature disabled
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found suitable version "1.2.8", minimum required is "1.2.3") 
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.8") 
-- Found OpenEXR: /usr/lib/x86_64-linux-gnu/libIlmImf.so
-- Checking for module 'gstreamer-base-1.0'
--   No package 'gstreamer-base-1.0' found
-- Checking for module 'gstreamer-video-1.0'
--   No package 'gstreamer-video-1.0' found
-- Checking for module 'gstreamer-app-1.0'
--   No package 'gstreamer-app-1.0' found
-- Checking for module 'gstreamer-riff-1.0'
--   No package 'gstreamer-riff-1.0' found
-- Checking for module 'gstreamer-pbutils-1.0'
--   No package 'gstreamer-pbutils-1.0' found
-- Looking for linux/videodev.h
-- Looking for linux/videodev.h - not found
-- Looking for linux/videodev2.h
-- Looking for linux/videodev2.h - found
-- Looking for sys/videoio.h
-- Looking for sys/videoio.h - not found
-- Checking for module 'libavresample'
--   No package 'libavresample' found
-- Checking for module 'libgphoto2'
--   No package 'libgphoto2' found
-- Found TBB: /usr/lib/x86_64-linux-gnu/libtbb.so
-- found IPP (ICV version): 9.0.1 [9.0.1]
-- at: /home/ruwiniopatha/OpenCV/build/3rdparty/ippicv/ippicv_lnx
-- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
-- Could NOT find Atlas (missing:  Atlas_CLAPACK_INCLUDE_DIR) 
-- Found apache ant 1.9.6: /usr/bin/ant
-- Could NOT find Matlab (missing:  MATLAB_MEX_SCRIPT MATLAB_INCLUDE_DIRS MATLAB_ROOT_DIR MATLAB_LIBRARIES MATLAB_LIBRARY_DIRS MATLAB_MEXEXT MATLAB_ARCH MATLAB_BIN) 
-- The imported target "vtkRenderingPythonTkWidgets" references the file
   "/usr/lib/x86_64-linux-gnu/libvtkRenderingPythonTkWidgets.so"
but this file does not exist.  Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
   "/usr/lib/cmake/vtk-6.2/VTKTargets.cmake"
but not all the files it references.

-- The imported target "vtk" references the file
   "/usr/bin/vtk"
but this file does not exist.  Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
   "/usr/lib/cmake/vtk-6.2/VTKTargets.cmake"
but not all the files it references.

-- Found VTK ver. 6.2.0 (usefile: /usr/lib/cmake/vtk-6.2/UseVTK.cmake)
-- Caffe:   NO
-- Protobuf:   YES
-- Glog:   YES
-- Looking for tiny_dnn.h
-- Looking for tiny_dnn.h - found
-- Found tiny-dnn in: /usr/local/include
-- C++11 support has been enabled by default.
-- freetype2:   YES
-- harfbuzz:    YES
-- No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
-- Found installed version of gflags: /usr/local/lib/cmake/gflags
-- Detected gflags version: 2.2.0
-- Checking SFM deps... TRUE
-- CERES support is disabled. Ceres Solver for reconstruction API is required.
-- freetype2:   YES
-- harfbuzz:    YES
-- Looking for tiny_dnn.h
-- Looking for tiny_dnn.h ...