Hi,

It would be really appreciated to get the example of a working connection using the amqps scheme.
I am currently trying to achieve that using the pika library but I always get the error:

ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1076)

I cannot tell if it is related to the Comodo CA or the OS lacking the intermediate CA or any of the usual ssl issues, since I tried many combinaisons as well as downloading the intermediate CA cert from comodo to ensure that it is known by my OS.

The connection sample I used is:

import pika
import ssl

credentials = pika.credentials.PlainCredentials(username='****', password='*****')
context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
context.verify_mode = ssl.CERT_OPTIONAL  # also tried CERT_REQUIRED
parameters = pika.ConnectionParameters(
    host='*****.****.cloudamqp.com',
    port=5671,
    virtual_host='my-vhost',
    credentials=credentials,
    ssl_options=pika.SSLOptions(context)
)
connection = pika.BlockingConnection(parameters)

I am using python from mac os catalina and I used brew to install python.
Python 3.7.5 in an isolated virtualenv with only pika installed.
pika==1.1.0

Thanks for your help.