SSL.SSLCERTVERIFICACIONALERROR: [SSL: Certificate_verify_failed] Verifique o falha: incapaz de obter certificado de emissor local (_ssl.c: 1091)
Once upon a time I stumbled with this issue. If you're using macOS go to Macintosh HD > Applications > Python3.6 folder (or whatever version of python you're using) > double click on "Install Certificates.command" file.
Stockholm