1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/shutil.py b/Lib/shutil.py
index a0ff1cd..61dc804 100644
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -343,7 +343,7 @@ def copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2,
         copystat(src, dst)
     except OSError as why:
         # Copying file access times may fail on Windows
-        if why.winerror is None:
+        if getattr(why, 'winerror', None) is None:
             errors.append((src, dst, str(why)))
     if errors:
         raise Error(errors)