Make runserver work using daphne

README.rst

@@ -1,6 +1,10 @@
 Django Channels
 ===============
 
+**NOTE: The current master branch is in flux as it changes to match the final
+structure and the new ASGI spec. If you wish to use this in the meantime,
+please use a tagged release.**
+
 This is a work-in-progress code branch of Django implemented as a third-party
 app, which aims to bring some asynchrony to Django and expand the options
 for code beyond the request-response model, in particular enabling WebSocket,

channels/backends/__init__.py

@@ -1,36 +0,0 @@
-from django.utils.module_loading import import_string
-
-
-class InvalidChannelBackendError(ValueError):
-    pass
-
-
-class BackendManager(object):
-    """
-    Takes a settings dictionary of backends and initialises them.
-    """
-
-    def __init__(self, backend_configs):
-        self.configs = backend_configs
-        self.backends = {}
-
-    def make_backend(self, name):
-        # Load the backend class
-        try:
-            backend_class = import_string(self.configs[name]['BACKEND'])
-        except KeyError:
-            raise InvalidChannelBackendError("No BACKEND specified for %s" % name)
-        except ImportError:
-            raise InvalidChannelBackendError(
-                "Cannot import BACKEND %r specified for %s" % (self.configs[name]['BACKEND'], name)
-            )
-
-        # Initialise and pass config
-        instance = backend_class(**{k.lower(): v for k, v in self.configs[name].items() if k != "BACKEND"})
-        instance.alias = name
-        return instance
-
-    def __getitem__(self, key):
-        if key not in self.backends:
-            self.backends[key] = self.make_backend(key)
-        return self.backends[key]