lxtree

lxtree

Package to draw tree structures (tree linux command style)

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Basic usage

Build the tree structure using TreeNodes. A TreeNode can contain other TreeNodes to represent the tree. When builded you car get a string representation of it, or get string of a sub-tree using some child as root.

Code samples

from lxtree import TreeNode


# Creating root
root = TreeNode('root')

# Adding a list of nodes
root.children = [TreeNode('branch1'), TreeNode('branch3')]

# Insert node
root.insert_child(TreeNode('branch2'), 1)

# Appending to a branch 1 by index
root[0].append_child(TreeNode('branch11'))

# Using index to assign children to branch11
root[0][0] = [TreeNode('leaf111'), TreeNode('leaf112')]

# Use `set_children` to add nodes as argv
root[1].set_children(TreeNode('leaf21'), TreeNode('leaf22'), TreeNode('leaf23'))

# Print tree
print(root)

Creating all structure at once

root = TreeNode('root').set_children(
  TreeNode('branch1').append_child(
      TreeNode('branch11').set_children(
          TreeNode('leaf111'),
          TreeNode('leaf112')
      )
  ),
  TreeNode('branch2').set_children(
      TreeNode('leaf21'),
      TreeNode('leaf22'),
      TreeNode('leaf23')
  ),
  TreeNode('branch3')
)

print(root)

Creating the tree from a dict

tree_data = {
  'root': {
      'branch1': {
        'branch11': {
          'leaf111': None,
          'leaf112': None
        }
      },
      'branch2': {
        'leaf21': None,
        'leaf22': None,
        'leaf23': None
      },
      'branch3': None
  }
}

print(TreeNode.tree_from_dict(tree_data))

Output