X-Git-Url: https://git.novaco.in/?p=electrum-server.git;a=blobdiff_plain;f=backends%2Fbitcoind%2Fblockchain_processor.py;h=e93439ee38e369d3732723b0477e0b5f76263fb8;hp=5d83be4a79e2c187a249e7a9cd80922e1410d7ea;hb=dd25a1f7c56c3964fb3f760e99b5b69b96ab7c75;hpb=a71f02d33aceec0b70bb365c7d89663a55c47f0a

diff --git a/backends/bitcoind/blockchain_processor.py b/backends/bitcoind/blockchain_processor.py
index 5d83be4..e93439e 100644
--- a/backends/bitcoind/blockchain_processor.py
+++ b/backends/bitcoind/blockchain_processor.py
@@ -852,8 +852,11 @@ class BlockchainProcessor(Processor):
                 new_mempool_hist[addr] = h
 
         # invalidate cache for mempool addresses whose mempool history has changed
-        for addr in new_mempool_hist.keys():
-            if addr in self.mempool_hist.keys():
+        new_mempool_hist_keys = new_mempool_hist.keys()
+        self_mempool_hist_keys = self.mempool_hist.keys()
+        
+        for addr in new_mempool_hist_keys:
+            if addr in self_mempool_hist_keys:
                 if self.mempool_hist[addr] != new_mempool_hist[addr]:
                     self.invalidate_cache(addr)
             else:
@@ -861,8 +864,8 @@ class BlockchainProcessor(Processor):
 
         # invalidate cache for addresses that are removed from mempool ?
         # this should not be necessary if they go into a block, but they might not
-        for addr in self.mempool_hist.keys():
-            if addr not in new_mempool_hist.keys():
+        for addr in self_mempool_hist_keys:
+            if addr not in new_mempool_hist_keys:
                 self.invalidate_cache(addr)