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-rw-r--r--Lib/idlelib/tree.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/Lib/idlelib/tree.py b/Lib/idlelib/tree.py
index 5f30f0f..9c2eb47 100644
--- a/Lib/idlelib/tree.py
+++ b/Lib/idlelib/tree.py
@@ -492,6 +492,7 @@ def _tree_widget(parent): # htest #
node = TreeNode(sc.canvas, None, item)
node.expand()
+
if __name__ == '__main__':
from unittest import main
main('idlelib.idle_test.test_tree', verbosity=2, exit=False)