# HG changeset patch
# User btimby
# Date 1328412623 0
# Node ID 06f1c0a8557dbd9e5ad87ff5519411d896a34bbe
# Parent  d4563cb0376c8b0cb207e28422e07e73cc0abb13
Loosen restriction for what is considered a "valid" queue backend.

diff -r d4563cb0376c -r 06f1c0a8557d queues/__init__.py
--- a/queues/__init__.py	Sun Feb 05 03:28:19 2012 +0000
+++ b/queues/__init__.py	Sun Feb 05 03:30:23 2012 +0000
@@ -20,7 +20,7 @@
 * http://code.google.com/p/stomperl/
 * RabbitMQ
 """
-import os
+import os, inspect
 
 __version__ = "0.6.2"
 
@@ -58,6 +58,5 @@
         raise InvalidBackend("Unable to import QUEUE BACKEND '%s'" % BACKEND)
     # Check that this is really a queues backend, not just some other random
     # module.
-    from .backends.base import BaseQueue
-    if not getattr(queues, 'Queue', None) in BaseQueue.__subclasses__():
-        raise InvalidBackend("Unable to import QUEUE_BACKEND '%s' does not appear to be valid." % BACKEND)
+    if not inspect.isclass(getattr(queues, 'Queue', None)):
+        raise InvalidBackend("Unable to import QUEUE BACKEND '%s' does not appear to be valid." % BACKEND)
diff -r d4563cb0376c -r 06f1c0a8557d queues/backends/__init__.py
--- a/queues/backends/__init__.py	Sun Feb 05 03:28:19 2012 +0000
+++ b/queues/backends/__init__.py	Sun Feb 05 03:30:23 2012 +0000
@@ -1,4 +1,4 @@
-import os
+import os, inspect
 from queues import InvalidBackend
 
 __all__ = ['backend']
@@ -25,6 +25,5 @@
         backend = __import__(BACKEND, {}, {}, [''])
     except ImportError:
         raise InvalidBackend("Unable to import QUEUE BACKEND '%s'" % BACKEND)
-    from .base import BaseQueue
-    if not getattr(backend, 'Queue', None) in BaseQueue.__subclasses__():
+    if not inspect.isclass(getattr(backend, 'Queue', None)):
         raise InvalidBackend("Unable to import QUEUE BACKEND '%s' does not appear to be valid." % BACKEND)