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import sys
from django.conf import settings
from django.core import exceptions
from .base import BaseBackend # noqa
# pylint: disable-msg=C0103
# mostly for backend compatibility
default_backends = [
("email", "notification.backends.email.EmailBackend"),
]
def load_backends():
backends = []
configured_backends = getattr(settings, "NOTIFICATION_BACKENDS", default_backends)
for medium_id, bits in enumerate(configured_backends):
if len(bits) == 2:
label, backend_path = bits
spam_sensitivity = None
elif len(bits) == 3:
label, backend_path, spam_sensitivity = bits
else:
raise exceptions.ImproperlyConfigured(
"NOTIFICATION_BACKENDS does not contain enough data."
)
dot = backend_path.rindex(".")
backend_mod, backend_class = backend_path[:dot], backend_path[dot + 1:]
try:
# import the module and get the module from sys.modules
__import__(backend_mod)
mod = sys.modules[backend_mod]
except ImportError as e:
raise exceptions.ImproperlyConfigured(
"Error importing notification backend {}: \"{}\"".format(backend_mod, e)
)
# add the backend label and an instantiated backend class to the
# backends list.
backend_instance = getattr(mod, backend_class)(medium_id, spam_sensitivity)
backends.append(((medium_id, label), backend_instance))
return dict(backends)
def load_media_defaults(backends):
media = []
defaults = {}
for key, backend in backends.items():
# key is a tuple (medium_id, backend_label)
media.append(key)
defaults[key[0]] = backend.spam_sensitivity
return media, defaults
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