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-rw-r--r--Lib/shutil.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/shutil.py b/Lib/shutil.py
index 2d7a506b2e..ef29ae2303 100644
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -236,7 +236,7 @@ def copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2,
# Copying file access times may fail on Windows
pass
else:
- errors.extend((src, dst, str(why)))
+ errors.append((src, dst, str(why)))
if errors:
raise Error(errors)