opencv cannot be installed in pypy's virtual environment

[yoshikakoba]

It is an error to execute the following command.
I don't know the cause of the error.
Please tell me the investigation method to solve it.

pypy3 -m pip install opencv-python==4.4.0.46

pip==21.1.3 setuptools==57.0.0 wheel==0.36.2
Visual studio community 2017
Python version: pypy3.7-v7.3.5-win64
OS:Windows 10

Collecting opencv-python==4.4.0.46
  Using cached opencv-python-4.4.0.46.tar.gz (88.9 MB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... done
Requirement already satisfied: numpy>=1.14.5 in d:\pypy3.7-v7.3.5-win64\site-packa
ges (from opencv-python==4.4.0.46) (1.19.4)
Building wheels for collected packages: opencv-python
  Building wheel for opencv-python (PEP 517) ... error
      wheel_directory, config_settings)
    File "C:\Users\AWV250~1\AppData\Local\Temp\pip-build-env-ofs2iuv5\overlay\site
-packages\setuptools\build_meta.py", line 207, in _build_with_temp_dir
      self.run_setup()
    File "C:\Users\AWV250~1\AppData\Local\Temp\pip-build-env-ofs2iuv5\overlay\site
-packages\setuptools\build_meta.py", line 259, in run_setup
      self).run_setup(setup_script=setup_script)
    File "C:\Users\AWV250~1\AppData\Local\Temp\pip-build-env-ofs2iuv5\overlay\site
-packages\setuptools\build_meta.py", line 150, in run_setup
      exec(compile(code, __file__, 'exec'), locals())
    File "setup.py", line 452, in <module>
      main()
    File "setup.py", line 252, in main
      cmake_source_dir=cmake_source_dir,
    File "C:\Users\AWV250~1\AppData\Local\Temp\pip-build-env-ofs2iuv5\overlay\site
-packages\skbuild\setuptools_wrap.py", line 625, in setup
      cmake_source_dir, skbuild_kw['cmake_install_dir'])
    File "setup.py", line 365, in _classify_installed_files_override
      raise Exception("Not found: '%s'" % relpath_re)
  Exception: Not found: 'python/cv2[^/]*\.pypy37\-pp73\-win_amd64\.pyd'
  ----------------------------------------
  ERROR: Failed building wheel for opencv-python
Failed to build opencv-python
ERROR: Could not build wheels for opencv-python which use PEP 517 and cannot be in
stalled directly``

[asmorkalov]

@yoshikakoba Could you provide more details on your system? According to logs pip tries to build the package from sources, but not uses regular wheel. It looks unusual as Pypi provides packages for Windows. Also you can try newer OpenCV version, Windows package for Python 3.7 x64 is already there: https://pypi.org/project/opencv-python/#files

[yoshikakoba]

@asmorkalov

My system environment is pypy running on Windows.

Windows 10 Enterprise 1909
PyPy v7.3.5
https://www.pypy.org/download.html#

When I install the compiled whl, I get the following error:

pypy3 -m pip install opencv_python-4.5.2.54-cp37-cp37m-win_amd64.whl
ERROR: opencv_python-4.5.2.54-cp37-cp37m-win_amd64.whl is not a supported wheel on this platform.

[skvark]

There are no PyPy wheels, see: #195

[Shaownak]

Have you tried decreasing the version?