Python error when trying to install ssl certificate

[Michael VanDeMar]

I am trying to set up a mail server for a client using webmin, but when I try and install an ssl certificate using Let's Encrypt I get the following Python error:

Requesting a new certificate for mailserver.mydomain.com, using the website directory /var/www/html ..
.. request failed : Failed to request certificate :

Traceback (most recent call last):
  File "/usr/libexec/webmin/webmin/acme_tiny.py", line 198, in <module>
    main(sys.argv[1:])
  File "/usr/libexec/webmin/webmin/acme_tiny.py", line 194, in main
    signed_crt = get_crt(args.account_key, args.csr, args.acme_dir, log=LOGGER, CA=args.ca, disable_check=args.disable_check, directory_url=args.directory_url, contact=args.contact)
  File "/usr/libexec/webmin/webmin/acme_tiny.py", line 121, in get_crt
    order, _, order_headers = _send_signed_request(directory['newOrder'], order_payload, "Error creating new order")
  File "/usr/libexec/webmin/webmin/acme_tiny.py", line 52, in _send_signed_request
    new_nonce = _do_request(directory['newNonce'])[2]['Replay-Nonce']
  File "/usr/libexec/webmin/webmin/acme_tiny.py", line 46, in _do_request
    raise ValueError("{0}:\nUrl: {1}\nData: {2}\nResponse Code: {3}\nResponse: {4}".format(err_msg, url, data, code, resp_data))
ValueError: Error:
Url: https://acme-v02.api.letsencrypt.org/acme/new-nonce
Data: None
Response Code: None
Response: <urlopen error EOF occurred in violation of protocol (_ssl.c:618)>

Any idea what may be going on here, or how to get around it? Thanks.

-Michael

[Michael VanDeMar]

Update: The instructions I saw did not indicate that certbot needed to be installed. I installed that, which updated a bunch of python, and I was able to successfully install the certificate afterwards, so, never mind. :)

-Michael