pip install cv2 install error:

ERROR: Could not find a version that satisfies the requirement cv2 (from versions: none)
ERROR: No matching distribution found for cv2

Solution:

Change CV2 to opencv-python

pip install opencv-python

Rule:

pip install Plugin -i  http://pypi.douban.com/simple/ –trusted-host pypi.douban.com

Codes:

pip install opencv-python -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com