From 7f58b968c2b16bee7984d006edbddaa18ddef3db Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Sat, 21 Oct 2017 21:28:05 +0200
Subject: [PATCH] Improve persistent dict key collision warning message
---
pytools/persistent_dict.py | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/pytools/persistent_dict.py b/pytools/persistent_dict.py
index 02b14dc..3b25d8e 100644
--- a/pytools/persistent_dict.py
+++ b/pytools/persistent_dict.py
@@ -461,9 +461,11 @@ class _PersistentDictBase(object):
from warnings import warn
warn("%s: key collision in cache at '%s' -- these are "
"sufficiently unlikely that they're often "
- "indicative of a broken implementation "
- "of equality comparison"
+ "indicative of a broken hash key implementation "
+ "(that is not considering some elements relevant "
+ "for equality comparison)"
% (self.identifier, self.container_dir))
+
# This is here so we can debug the equality comparison
stored_key == key
raise NoSuchEntryError(key)
--
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