ARI in python development environment issues

1

I’m trying to get the py-ari library working on my Centos 7 development VM. It seems to have installed correctly and the test application runs and registers to Asterisk(on another VM), but when I dial the extension to enter the application I get the message:

No handlers could be found for logger "ari.client"

printed in the Linux CLI where the python script is running.

Python version is 2.7.5
Asterisk version is 13.8.2

Python script:

> import ari

> client = ari.connect('http://10.1.40.162:8088/', 'asterisk', 'asterisk')

> def on_dtmf(channel, event):
>     digit = event['digit']
>     if digit == '#':
>         channel.play(media='sound:goodbye')
>         channel.continueInDialplan()
>     elif digit == '*':
>         channel.play(media='sound:asterisk-friend')
>     else:
>         channel.play(media='sound:digits/%s' % digit)


> def on_start(channel, event):
>     channel.on_event('ChannelDtmfReceived', on_dtmf)
>     channel.answer()
>     channel.play(media='sound:hello-world')


> client.on_channel_event('StasisStart', on_start)
> client.run(apps="hello")

Extensions.conf:

> [ari]
> switch => Realtime

> [operators]
> switch => Realtime
> include => ari
> include => iax-trunk

> [iax-trunk]
> exten => _7XXX,1,Dial(IAX2/avm/${EXTEN})
> exten => _6XXX,1,Dial(IAX2/avm/${EXTEN})

> [iax]
> include => operators
> include => ari

The following row is in the extensions table in the Realtime database:

id		context	exten	priority	app		appdata
1001	ari		1001	1		Stasis	         hello

The following is printed in the Asterisk CLI when the application is started and a call is placed:

 Creating Stasis app 'hello'
  == WebSocket connection from '10.1.40.167:55395' for protocol '' accepted using version '13'
 Activating Stasis app 'hello'
    -- Accepting AUTHENTICATED call from 10.1.40.166:4569:
    --        > requested format = alaw,
    --        > requested prefs = (alaw|ulaw|siren14|siren7|g722|slin16|slin|g726|g726aal2|adpcm|gsm|ilbc|speex|lpc10|g729|g723),
    --        > actual format = ulaw,
    --        > host prefs = (ulaw|alaw|siren14|siren7|g722|slin16|slin|g726|g726aal2|adpcm|gsm|ilbc|speex|lpc10|g729|g723),
    --        > priority = mine
    -- Executing [1001@iax:1] Stasis("IAX2/avm-9887", "hello")
    -- Hungup 'IAX2/avm-9887'

Let me know if more information is needed.

Thanks,
Tommy