Certificate verify failed on python 3.7.0

[guyskk]

ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: IP address mismatch, certificate is not valid for '127.0.0.1'. (_ssl.c:1045)

You may update the self-signed certificate.

You have to include a SAN field of type IP address.
https://bugs.python.org/issue34440

[atenni]

I'm bumping into this too in Python 3.7.

urllib3 gives this warning that provides a little more info:

.venv/lib/python3.7/site-packages/urllib3/connection.py:362: SubjectAltNameWarning:

Certificate for 127.0.0.1 has no `subjectAltName`, falling back to check for a
`commonName` for now. This feature is being removed by major browsers and
deprecated by RFC 2818. (See https://github.com/shazow/urllib3/issues/497 for
details.)

[1oglop1]

I just hit the same during kevin1024/vcrpy/pull/411