1 files changed, 36 insertions, 0 deletions
diff --git a/scipy/weave/dumb_shelve.py b/scipy/weave/dumb_shelve.py
new file mode 100644
index 000000000..0a667a3f5
--- /dev/null
+++ b/scipy/weave/dumb_shelve.py
@@ -0,0 +1,36 @@
+from shelve import Shelf
+import zlib
+from cStringIO import  StringIO
+import  cPickle  
+import dumbdbm_patched
+
+class DbfilenameShelf(Shelf):
+    """Shelf implementation using the "anydbm" generic dbm interface.
+
+    This is initialized with the filename for the dbm database.
+    See the module's __doc__ string for an overview of the interface.
+    """
+    
+    def __init__(self, filename, flag='c'):
+        Shelf.__init__(self, dumbdbm_patched.open(filename, flag))
+
+    def __getitem__(self, key):
+        compressed = self.dict[key]
+        try:
+            r = zlib.decompress(compressed)
+        except zlib.error:
+            r = compressed
+        return cPickle.loads(r) 
+        
+    def __setitem__(self, key, value):
+        s = cPickle.dumps(value,1)
+        self.dict[key] = zlib.compress(s)
+
+def open(filename, flag='c'):
+    """Open a persistent dictionary for reading and writing.
+
+    Argument is the filename for the dbm database.
+    See the module's __doc__ string for an overview of the interface.
+    """
+    
+    return DbfilenameShelf(filename, flag)