python安装包

pip install 第三方库名字 -i https://pypi.tuna.tsinghua.edu.cn/simple
#cv2(cv2需要在OpenCV的基础上）
pip install opencv-python==4.3.0.38 -i https://pypi.tuna.tsinghua.edu.cn/simple
#否则出现module ‘cv2‘ has no attribute ‘gapi_wip_gst_GStreamerPipeline‘
pip install opencv-python install "opencv-python-headless<4.3
#否则出现opencv报错The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Cocoa support.If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config
pip install opencv-contrib-python==4.3.0.38 -i https://pypi.tuna.tsinghua.edu.cn/simple
#mediapipe
pip install mediapipe -i https://pypi.tuna.tsinghua.edu.cn/simple
#pygame
pip install pygame -i https://pypi.tuna.tsinghua.edu.cn/simple