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-rwxr-xr-xtools/buildgen/bunch.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/buildgen/bunch.py b/tools/buildgen/bunch.py
index 1f17ccb31b..3f5af53778 100755
--- a/tools/buildgen/bunch.py
+++ b/tools/buildgen/bunch.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
@@ -64,4 +64,5 @@ def merge_json(dst, add):
elif isinstance(dst, list) and isinstance(add, list):
dst.extend(add)
else:
- raise Exception('Tried to merge incompatible objects %r, %r' % (dst, add))
+ raise Exception('Tried to merge incompatible objects %s %s\n\n%r\n\n%r' % (type(dst).__name__, type(add).__name__, dst, add))
+