从给定的字典创建树

您可以使用treelib执行以下 *** 作：

from treelib import Node, Treedict_ = {"2": {'parent': "1"}, "1": {'parent': None}, "3": {'parent': "2"}}added = set()tree = Tree()while dict_:    for key, value in dict_.items():        if value['parent'] in added: tree.create_node(key, key, parent=value['parent']) added.add(key) dict_.pop(key) break        elif value['parent'] is None: tree.create_node(key, key) added.add(key) dict_.pop(key) breaktree.show()

输出量

1└── 2    └── 3

想法是仅在树中存在父节点或父节点存在时添加节点

None

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