Can't use python certstream library to connect to my own certstream server

[zJvco]

Hello

I've created my own certstream server, it is working fine, but I get some errors when I try to use certstream python library to my localhost:4000.

The error:

Error connecting to CertStream - [SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1007) - Sleeping for a few seconds and trying again...

What is happening?

[spodlesny-bloomreach]

I had the same issue.

Replace:
certstream.listen_for_events(print_callback, url='wss://127.0.0.1:4000')

with
certstream.listen_for_events(print_callback, url='ws://127.0.0.1:4000')

(wss -> ws)