python版本3.9,我在安装opencv时使用
pip3 install opencv-contrib-python==4.5.4.60 -i http://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn --no-index
但是报错
ERROR: Could not find a version that satisfies the requirement opencv-contrib-python==4.5.4.60
ERROR: No matching distribution found for opencv-contrib-python==4.5.4.60
后来我发现用国内的源下载任何库都会有这个问题,但是国外的源下载太慢了,也会报错,求大神指教!!!!
pip3 install opencv-contrib-python==4.5.4.60 -i http://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn --no-index
但是报错
ERROR: Could not find a version that satisfies the requirement opencv-contrib-python==4.5.4.60
ERROR: No matching distribution found for opencv-contrib-python==4.5.4.60
后来我发现用国内的源下载任何库都会有这个问题,但是国外的源下载太慢了,也会报错,求大神指教!!!!