GPU matcher on Python

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Hello, i have compiled OpenCV for Python with cudafeatures2d installed. Unfortunately, i could find any succinct documentation on cuda module in general and on cudafeatures2d with Python.

My final task is to use gpu-based matcher for AKAZE descriptors (in Python). I haven't been able to google any reasonable answer to how to do it with OpenCV without manual software carpentry. Please advice how to do it.

Here's output of getBuildInformation():

General configuration for OpenCV 3.3.1 =====================================
Version control:               3.3.1

Extra modules:
  Location (extra):            /opt/opencv/opencv_contrib/modules
  Version control (extra):     3.3.1

Platform:
  Timestamp:                   2018-11-23T15:10:05Z
  Host:                        Linux 4.4.0-98-generic x86_64
  CMake:                       3.5.1
  CMake generator:             Unix Makefiles
  CMake build tool:            /usr/bin/make
  Configuration:               RELEASE

CPU/HW features:
  Baseline:                    SSE SSE2 SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 AVX
    requested:                 SSE3
    required:                  AVX
  Dispatched code generation:  FP16 AVX2
    requested:                 SSE4_1 SSE4_2 AVX FP16 AVX2
    FP16 (1 files):            + FP16
    AVX2 (8 files):            + FP16 FMA3 AVX2

C/C++:
  Built as dynamic libs?:      YES
  C++ Compiler:                /usr/bin/c++  (ver 5.4.0)
  C++ flags (Release):         -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections  -msse -msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 -mavx -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
  C++ flags (Debug):           -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections  -msse -msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 -mavx -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
  C Compiler:                  /usr/bin/cc
  C flags (Release):           -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections  -msse -msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 -mavx -fvisibility=hidden -O3 -DNDEBUG  -DNDEBUG
  C flags (Debug):             -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections  -msse -msse2 -msse3 -mssse3 -msse4.1 -mpopcnt -msse4.2 -mavx -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
  Linker flags (Release):
  Linker flags (Debug):
  ccache:                      NO
  Precompiled headers:         YES
  Extra dependencies:          dl m pthread rt cudart nppc nppial nppicc nppicom nppidei nppif nppig nppim nppist nppisu nppitc npps cublas cufft -L/usr/local/cuda/lib64
  3rdparty dependencies:

OpenCV modules:
  To be built:                 cudev core cudaarithm flann hdf imgproc ml objdetect phase_unwrapping plot reg surface_matching video xphoto bgsegm cudabgsegm cudafilters cudaimgproc cudawarping dnn face fuzzy img_hash imgcodecs photo shape videoio xobjdetect cudacodec highgui bioinspired dpm features2d line_descriptor saliency text calib3d ccalib cudafeatures2d cudalegacy cudaobjdetect cudaoptflow cudastereo datasets rgbd stereo structured_light superres tracking videostab xfeatures2d ximgproc aruco optflow stitching python2
  Disabled:                    js world contrib_world
  Disabled by dependency:      -
  Unavailable:                 java python3 ts viz cnn_3dobj cvv dnn_modern freetype matlab ...