ERROR: Ignored the following versions that require a different python version: 1.6.2 Requires-Python >=3.7,<3.10; 1.6.3 Requires-Python >=3.7,<3.10; 1.7.0 Requires-Python >=3.7,<3.10; 1.7.1 Requires-Python >=3.7,<3.10
ERROR: Could not find a version that satisfies the requirement opencv-python==4.7.0.72 (from versions: none)
ERROR: No matching distribution found for opencv-python==4.7.0.72

查到了个较好的解决方法，就是更新pip

python3 -m pip install --upgrade pip

更新一下，再进行pip安装就没有问题了。

仅记录~~