| 86 | |
| 87 | print("Example 6") |
| 88 | class IndexableNode(BinaryNode): |
| 89 | def _traverse(self): |
| 90 | if self.left is not None: |
| 91 | yield from self.left._traverse() |
| 92 | yield self |
| 93 | if self.right is not None: |
| 94 | yield from self.right._traverse() |
| 95 | |
| 96 | def __getitem__(self, index): |
| 97 | for i, item in enumerate(self._traverse()): |
| 98 | if i == index: |
| 99 | return item.value |
| 100 | raise IndexError(f"Index {index} is out of range") |
| 101 | |
| 102 | |
| 103 | print("Example 7") |