X-Git-Url: https://git.novaco.in/?p=p2pool.git;a=blobdiff_plain;f=p2pool%2Fdata.py;h=e8fe347cc20232990f97ef61795def710a88e94a;hp=7c44878906465e3cccf306cb4a2958319ec8f222;hb=39767a2c7da3b22efc8d90623dcda12b6ab4f419;hpb=8c30d486ead72c55906bbb230e78c2fbf75df4a5

diff --git a/p2pool/data.py b/p2pool/data.py
index 7c44878..e8fe347 100644
--- a/p2pool/data.py
+++ b/p2pool/data.py
@@ -430,7 +430,7 @@ class OkayTracker(forest.Tracker):
         try:
             share.check(self)
         except:
-            log.err(None, 'Share check failed: %064x -> %064x' % (share.hash, share.previous_hash))
+            log.err(None, 'Share check failed: %064x -> %064x' % (share.hash, share.previous_hash if share.previous_hash is not None else 0))
             return False
         else:
             self.verified.add(share)