已解决python安装opencv报错ERROR: Could not build wheels for opencv-python

在python安装opencv遇到报错。如下所示：
pip install opencv-python报错。

已解决错误：
  ERROR: Failed building wheel for opencv-python
Failed to build opencv-python
ERROR: Could not build wheels for opencv-python, which is required to install pyproject.toml-based projects

报错原因

在使用命令pip install opencv-python安装的是最新版本，我用的python3.6版本，查了下，不支持3.6版本。我就去找了个支持的如opencv-python==4.3.0.38