In my plugin I am getting error:

Traceback (most recent call last): File "/opt/site24x7/monagent/plugins/haproxy/haproxy.py", line 10, in username = admin

NameError: name 'admin' is not defined

In my haproxy.cfg I have configured;

listen site24 0.0.0.0:1944
mode http
stats enable
# stats realm Private
stats auth admin:site24x7
stats uri /haproxy?stats

In the Site24x7 haproxy.py plugin I have:

url = "http://localhost:1944/haproxy?stats;csv" 
username = admin 
password = site24x7 
realm = 'None' 

I have been trying different configs using "" or '' or none, defing realm and not. Can someone please share a working configuration that is useing auth for HAproxy please?