☀️ Moved the signal to its own file to avoid import errors

constance/__init__.py

@@ -1,4 +1,3 @@
-import django.dispatch
 from django.utils.functional import LazyObject
 
 __version__ = '1.3'
@@ -13,5 +12,3 @@ class LazyConfig(LazyObject):
 
 
 config = LazyConfig()
-
-updated_signal = django.dispatch.Signal(providing_args=['key', 'value'])

constance/backends/database/__init__.py

@@ -4,8 +4,7 @@ from django.core.exceptions import ImproperlyConfigured
 from django.db.models.signals import post_save
 
 from .. import Backend
-from ... import settings
-from ... import updated_signal
+from ... import settings, signals
 
 
 class DatabaseBackend(Backend):
@@ -87,7 +86,7 @@ class DatabaseBackend(Backend):
         if self._cache:
             self._cache.set(key, value)
 
-        updated_signal.send(sender='constance', key=key, value=value)
+        signals.updated_signal.send(sender='constance', key=key, value=value)
 
     def clear(self, sender, instance, created, **kwargs):
         if self._cache and not created:

constance/backends/redisd.py

@@ -3,8 +3,7 @@ from django.utils import six
 from django.utils.six.moves import zip
 
 from . import Backend
-from .. import settings, utils
-from .. import updated_signal
+from .. import settings, utils, signals
 
 try:
     from cPickle import loads, dumps
@@ -50,4 +49,4 @@ class RedisBackend(Backend):
 
     def set(self, key, value):
         self._rd.set(self.add_prefix(key), dumps(value))
-        updated_signal.send(sender='constance', key=key, value=value)
+        signals.updated_signal.send(sender='constance', key=key, value=value)

constance/signals.py

@@ -0,0 +1,3 @@
+import django.dispatch
+
+updated_signal = django.dispatch.Signal(providing_args=['key', 'value'])

docs/index.rst

@@ -78,7 +78,7 @@ You can use it as:
 
 .. code-block:: python
 
-    from constance import updated_signal
+    from constance.signals import updated_signal
 
     @receiver(updated_signal)
     def constance_updated(sender, key, value, **kwargs):