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-rw-r--r--pym/cache/util.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/pym/cache/util.py b/pym/cache/util.py
index 0e81a399f..90fcd53dc 100644
--- a/pym/cache/util.py
+++ b/pym/cache/util.py
@@ -18,7 +18,7 @@ def mirror_cache(valid_nodes_iterable, src_cache, trg_cache, eclass_cache=None,
else:
noise=verbose_instance
- dead_nodes = set(trg_cache.iterkeys())
+ dead_nodes = set(trg_cache)
count=0
if not trg_cache.autocommits: