Class PathWithCycle

lib/matplotlib/tests/test_path.py:377–380

def test_path_deepcopy_cycle():
    class PathWithCycle(Path):
        def __init__(self, *args, **kwargs):
            super().__init__(*args, **kwargs)
            self.x = self

    p = PathWithCycle([[0, 0], [1, 1]], readonly=True)
    p_copy = p.deepcopy()