当我执行此命令时：
pip3 install opencv-python
我收到以下错误：
Installing build dependencies ... error ERROR: Command errored out with exit status 1:
command: /usr/bin/python3 /usr/lib/python3/dist-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-z4c_sn6u/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools wheel scikit-build cmake pip 'numpy==1.11.3; python_version=='"'"'3.5'"'"'' 'numpy==1.13.3; python_version=='"'"'3.6'"'"'' 'numpy==1.14.5; python_version=='"'"'3.7'"'"'' 'numpy==1.17.3; python_version>='"'"'3.8'"'"'' cwd: None
Complete output (22 lines):
Ignoring numpy: markers 'python_version == "3.5"' don't match your environment
Ignoring numpy: markers 'python_version == "3.6"' don't match your environment
Ignoring numpy: markers 'python_version == "3.7"' don't …