title: How do I install opencv on pypy3?
body: <p>Anyone help me with this fail report. I am trying to install opencv on pypy3 with git folder and <code>pypy3 setup.py install</code> <a href="https://github.com/opencv/opencv-python" rel="nofollow noreferrer">https://github.com/opencv/opencv-python</a></p>
  <pre><code>[100%] Building CXX object 
  modules/python3/CMakeFiles/opencv_python3.dir/__/src2/cv2.cpp.o
  /home/toso/Dev/Python/Pypy3/opencv_test/opencv- 
  python/opencv/modules/python/src2/cv2.cpp:17:10: fatal error: Python.h: No such file 
  or directory
  17 | #include &lt;Python.h&gt;
     |          ^~~~~~~~~~
  compilation terminated.
  make[2]: *** [modules/python3/CMakeFiles/opencv_python3.dir/build.make:76: 
   modules/python3/CMakeFiles/opencv_python3.dir/__/src2/cv2.cpp.o] Error 1
  make[1]: *** [CMakeFiles/Makefile2:2254: 
   modules/python3/CMakeFiles/opencv_python3.dir/all] Error 2
  make: *** [Makefile:166: all] Error 2
  Traceback (most recent call last):
    File &quot;/home/toso/Dev/Python/Pypy3/opencv_test/site- 
    packages/skbuild/setuptools_wrap.py&quot;, line 589, in setup
     cmkr.make(make_args, env=env)
    File &quot;/home/toso/Dev/Python/Pypy3/opencv_test/site-packages/skbuild/cmaker.py&quot;, 
    line 507, in make
     os.path.abspath(CMAKE_BUILD_DIR())))
  
  An error occurred while building with CMake.
    Command:
      cmake --build . --target install --config Release --
    Source directory:
      /home/toso/Dev/Python/Pypy3/opencv_test/opencv-python
  Working directory:
      /home/toso/Dev/Python/Pypy3/opencv_test/opencv-python/_skbuild/linux-x86_64- 
      3.6/cmake-build
  Please see CMake's output for more information.
  </code></pre>