pythontreeanytree

Get parent node name in anytree

I have created a tree using anytree for my custom taxonomy and I am able to search the tree using:

from anytree import find
name='c'
find(root, lambda node: node.name == name)

This returns an object of Node class that looks something like this:

Node('/f/b/d')

So, for child c, d is the immediate parent and I just want to extract 'd' and not the entire path mentioned above.

Any help would be appreciated :)

Solution

  • You can get .parent.name

    You can even get grandparent name .parent.parent.name (if only exists)

    from anytree import Node
from anytree import find

root = Node("f")
b = Node("b", parent=root)
d = Node("d", parent=b)
c = Node("c", parent=d)

name='c'
result = find(root, lambda node: node.name == name)

print('result Node:', result)

if result.parent:
    print('parent name:', result.parent.name)

if result.parent and result.parent.parent:
    print('grandparent:', result.parent.parent.name)

    Result:

    result Node: Node('/f/b/d/c')
parent name: d
grandparent: b