Anonymous avatar Anonymous committed 793218d

[svn] Adding exception should SA 0.4 be used with Beaker.

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 except ImportError:
     raise InvalidCacheBackendError("Database cache backend requires the 'sqlalchemy' library")
+if not hasattr(sa, 'BoundMetaData'):
+    raise InvalidCacheBackendError("SQLAlchemy 0.4 and later are not currently supported.")
 class DatabaseNamespaceManager(NamespaceManager):
     metadatas = SyncDict(_threading.Lock(), {})
     tables = SyncDict(_threading.Lock(), {})
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