solved it.. I had to explicitly add the hosts parameter
from django.conf import settings
> from django.utils.module_loading import import_string
config = getattr(settings, "CHANNEL_LAYERS", {})
> hosts = config['default']['CONFIG']['hosts']
backend_class = import_string(config['default']['BACKEND'])
> channel_layer = backend_class(hosts=hosts)
>
channel = channel_layer.group_channels('poll')[0]
channel_layer.send(channel, {"text": "hello world!"})
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