.

wcfs/testprog/treedelta-genallstructs.py

@@ -54,6 +54,7 @@ from wendelin.wcfs.internal import xbtree
 from wendelin.bigfile.file_zodb import ZBlk
 from zodbtools.util import storageFromURL
 
+from persistent.mapping import PersistentMapping
 import BTrees.LOBTree
 
 
@@ -128,7 +129,7 @@ def treedeltaGenAllStructs(zstor, kv1txt, kv2txt, n):
 
 
     # root['treedelta/values'] = {} v -> ZBlk(v)
-    valdict = root.setdefault('treedelta/values', {})
+    valdict = root['treedelta/values'] = PersistentMapping()
     for v in b'abcdefghi':
         # XXX don't ovewrite if already set?
         zblk = ZBlk()
@@ -151,8 +152,8 @@ def treedeltaGenAllStructs(zstor, kv1txt, kv2txt, n):
 
     diff12 = diff(kv1, kv2) # of (k,v)  diff to go from kv1 to kv2
     diff21 = diff(kv2, kv1) # of (k,v)  diff to go from kv2 to kv1
-    print('diff12:', diff12)
-    print('diff21:', diff21)
+    #print('diff12:', diff12)
+    #print('diff21:', diff21)
 
     maxdepth=2  # XXX -> 3?
     maxsplit=1  # XXX -> 2?
@@ -160,7 +161,7 @@ def treedeltaGenAllStructs(zstor, kv1txt, kv2txt, n):
     t2AllStructs = list(xbtree.AllStructs(kv2.keys(), maxdepth, maxsplit))
 
     # emit initial kv1 state prepared as ZODB would natively
-    ztree = valdict['treedelta/tree'] = BTrees.LOBTree.LOBTree()   # XXX -> XLOTree (small nodes)
+    ztree = root['treedelta/tree'] = BTrees.LOBTree.LOBTree()   # XXX -> XLOTree (small nodes)
     for k in sorted(kv1):
         ztree[k] = kv1[k]
     transaction.commit()