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| 系统版本:Ubuntu 18.04 系统架构:aarch64
 python:  3.7.5
 按照手册安装opencv-python 指定版本4.3.0.38 时总是报错,如下:
 Traceback (most recent call last):
 File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/pep517/in_process/_in_process.py", line 363, in <module>
 main()
 File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/pep517/in_process/_in_process.py", line 345, in main
 json_out['return_val'] = hook(**hook_input['kwargs'])
 File "/usr/local/lib/python3.7/dist-packages/pip/_vendor/pep517/in_process/_in_process.py", line 262, in build_wheel
 metadata_directory)
 File "/usr/local/lib/python3.7/dist-packages/setuptools/build_meta.py", line 245, in build_wheel
 wheel_directory, config_settings)
 File "/usr/local/lib/python3.7/dist-packages/setuptools/build_meta.py", line 229, in _build_with_temp_dir
 self.run_setup()
 File "/usr/local/lib/python3.7/dist-packages/setuptools/build_meta.py", line 282, in run_setup
 self).run_setup(setup_script=setup_script)
 File "/usr/local/lib/python3.7/dist-packages/setuptools/build_meta.py", line 174, in run_setup
 exec(code, locals())
 File "<string>", line 452, in <module>
 File "<string>", line 252, in main
 File "/tmp/pip-build-env-gn1i3mo6/overlay/lib/python3.7/site-packages/skbuild/setuptools_wrap.py", line 686, in setup
 skbuild_kw["cmake_install_dir"],
 File "<string>", line 403, in _classify_installed_files_override
 TypeError: _classify_installed_files() got an unexpected keyword argument 'cmake_install_dir'
 [end of output]
 
 note: This error originates from a subprocess, and is likely not a problem with pip.
 ERROR: Failed building wheel for opencv-python
 Successfully built dill lmdb onnx onnx-tf Pillow psutil ruamel.yaml sklearn
 Failed to build opencv-python
 ERROR: Could not build wheels for opencv-python, which is required to install pyproject.toml-based projects
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