Don't just look at leaf nodes when coming up with prefix paths.

Eric Naeseth · Eric Naeseth · commit 8ce6979cc22d · 2009-03-10T15:50:08.000-05:00
diff --git a/fp_growth.py b/fp_growth.py
@@ -159,7 +159,7 @@ def collect_path(node):
             path.reverse()
             return path
             
-        return (collect_path(node) for node in self.nodes(item) if node.leaf)
+        return (collect_path(node) for node in self.nodes(item))
         
     def _removed(self, node):
         """Called when `node` is removed from the tree; performs cleanup."""
