你是否遇到过以下问题： WARNING: Retrying (Retry(total=None, connect=None, read=None, redirect=None, status=None))
WARNING: There was an error checking the latest version of pip.
ERROR: Could not find a version that satisfies the requirement opencv-python
最近我也遇到了相关问题
后来一看，把vpn关掉就行了
