I can not install Python module cv2 with the command "pip install cv2"
OS: Windows 7 64bit
error:
Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not find a version that satisfies the requirement cv2 <from versions: none >
WARNING: You are using pip version 20.2; however, version 20.2.1 is available.
You should consider upgrading
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