在raspi 3上安装opencv时发生SSLError

Question

I was trying to install OpenCV on my raspberry pi 3 and was following the tutorial: https://www.learnopencv.com/install-opencv-4-on-raspberry-pi/

Everything was going well until the command:

sudo -H pip3 install -U pip numpy

After I executed the above command I got the following error(last part of the error):

request.exceptions.SSLError: ("bad handshake: Error([('SSL routines', 'tls_process_server_certificate','certificate verify failed')],)",)

I have been searching for a solution for 2-3 days now. Any help would be very well appreciated.

Answer 1

Ok, my problem is solved. In my case, my raspberry pi 3's date and time settings were incorrect and therefore SSL certificate error was coming.

I changed the date using the command (Time in 24hr format):

sudo date -s "Day Mon date hh:mm:ss Timezone Year"

eg for IST use timezone= UTC+5:30

sudo date -s "Thu Aug 9 21:31:26 UTC+5:30 2019"