@ewarren 's Python → Install Certificates.command worked.
To be exact:
1- browse on Mac to Applications > Python 3.11
2- double click on “Install Certificates.command”
Copying the certificate from api.openai.c0m/v1/engines into cacert.pem as well as setting REQUESTS_CA_BUNDLE did not work. Btw, the cert I’ve got from engines is Baltimore CyberTrust Root.cer and the sni.cloudflaressl.com.cer. I tried both the chain and single versions of both.