Python出现Could not find a version that satisfies the requirement openpyxl (from versions: )

win10 pip3 安装某些包失败提示"Could not find a version that satisfies the requirement openpyxl (from versions: )"

按照提示所示是其中一个原因是pip版本过低，需要更新pip：

 python -m pip install --upgrade pip

或者

python -m pip3 install --upgrade pip3