python ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed:

Install Python certificates! (A common issue on macOS.)

Open these files: 

Install Certificates.command

Update Shell Profile.command

Run these two scripts and you wont have this issue any more.

codehexaui-iMac:Python 3.7 codehexa$ pwd

/Applications/Python 3.7

codehexaui-iMac:Python 3.7 codehexa$ ls -tlr

total 696

-rwxr-xr-x  1 root  wheel   2532 Mar 26 05:55 Update Shell Profile.command

-rw-r--r--  1 root  wheel   3875 Mar 26 05:55 ReadMe.rtf

-rw-r--r--  1 root  wheel  13327 Mar 26 05:55 License.rtf

-rwxr-xr-x  1 root  wheel   1418 Mar 26 05:55 Install Certificates.command

-rw-r--r--@ 1 root  wheel      0 Mar 26 05:55 Icon?

lrwxr-xr-x  1 root  wheel     98 Jul  2 04:39 Python Documentation.html -> /Library/Frameworks/Python.framework/Versions/3.7/Resources/English.lproj/Documentation/index.html

drwxr-xr-x  3 root  wheel     96 Jul  2 04:39 Python Launcher.app

drwxr-xr-x  3 root  wheel     96 Jul  2 04:39 IDLE.app

codehexaui-iMac:Python 3.7 codehexa$ ./Install\ Certificates.command 

 -- pip install --upgrade certifi

Requirement already up-to-date: certifi in /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages (2019.6.16)

You are using pip version 19.0.3, however version 19.1.1 is available.

You should consider upgrading via the 'pip install --upgrade pip' command.

 -- removing any existing file or link

 -- creating symlink to certifi certificate bundle

 -- setting permissions

 -- update complete

codehexaui-iMac:Python 3.7 codehexa$ ./Update\ Shell\ Profile.command 

This script will update your shell profile when the 'bin' directory

of python is not early enough of the PATH of your shell.

These changes will be effective only in shell windows that you open

after running this script.

All right, you're a python lover already