Gregory, the change adds a print in: https://hg.python.org/cpython/file/tip/Lib/lib2to3/fixes/fix_reload.py#l29

./python -m test test_lib2to3
Run tests sequentially
0:00:00 [1/1] test_lib2to3
obj: Leaf(1, 'a')
obj: Leaf(1, 'a')
obj: Leaf(1, 'a')
obj: Leaf(1, 'a')
obj: Leaf(1, 'a')
obj: Leaf(1, 'a')
obj: Node(star_expr, [Leaf(16, '*'), Leaf(1, 'h')])
obj: Node(argument, [Leaf(36, '**'), Leaf(1, 'i')])
1 test OK.

Total duration: 12 sec
Tests result: SUCCESS