def rfc4514_string(self):
        """
        Format as RFC4514 Distinguished Name string.

        Use short attribute name if available, otherwise fall back to OID
        dotted string.
        """
        key = _NAMEOID_TO_NAME.get(self.oid, self.oid.dotted_string)
        return '%s=%s' % (key, _escape_dn_value(self.value))

        Format as RFC4514 Distinguished Name string.

        Use short attribute name if available, otherwise fall back to OID
        dotted string.
        
stackoverflow/venv/lib/python3.6/site-packages/cryptography/x509/name.py