nutree#
A Python library for tree data structures with an intuitive, yet powerful, API.
- Project:
- Version:
0.7, Date: Nov 12, 2023
$ pip install nutree
Note: Run pip install nutree[graph] instead, in order to install
additional graph support.
from nutree import Tree, Node
tree = Tree("Store")
n = tree.add("Records")
n.add("Let It Be")
n.add("Get Yer Ya-Ya's Out!")
n = tree.add("Books")
n.add("The Little Prince")
tree.print()
Tree<'Store'>
├─── 'Records'
│ ├─── 'Let It Be'
│ ╰─── "Get Yer Ya-Ya's Out!"
╰─── 'Books'
╰─── 'The Little Prince'
Tree nodes wrap the data and also expose methods for navigation, searching, iteration, …
records_node = tree["Records"]
assert isinstance(records_node, Node)
assert records_node.name == "Records"
print(records_node.first_child())
Node<'Let It Be', data_id=510268653885439170>
Nodes may be strings or arbitrary objects:
alice = Person("Alice", age=23, guid="{123-456}")
tree.add(alice)
# Lookup nodes by object, data_id, name pattern, ...
alice_node = tree[alice]
assert isinstance(alice_node.data, Person)
assert alice_node.data is alice
del tree[alice]