.

wcfs/internal/xbtree.py

@@ -152,7 +152,8 @@ def iterAllStructPermutations(keys, maxdepth, maxsplit):
         klo = keyv[0]  - 1
         khi = keyv[-1] + 1 + 1   # hi is ")", not "]"
 
-    yield from _iterAllStructPermutations(klo, khi, keyv, maxdepth, maxsplit)
+    for tree in _iterAllStructPermutations(klo, khi, keyv, maxdepth, maxsplit):
+        yield tree
 
 
 def _iterAllStructPermutations(klo, khi, keyv, maxdepth, maxsplit):
@@ -160,7 +161,7 @@ def _iterAllStructPermutations(klo, khi, keyv, maxdepth, maxsplit):
     # XXX assert keyv sorted, in [klo, khi)
 
     for nsplit in range(0, maxsplit):
-        for ksplitv in _iterSplitByN(klo, khi, nsplit)
+        for ksplitv in _iterSplitByN(klo, khi, nsplit):
 
             # child_i
             xlo, xhi