Draws ASCII trees.
Occasionally, you want things to look slightly pretty in the terminal. If trees are involved, give asciitree a shot!
Here’s a code sample:
class Node(object): def __init__(self, name, children): self.name = name self.children = children def __str__(self): return self.name root = Node('root', [ Node('sub1', ), Node('sub2', [ Node('sub2sub1', ) ]), Node('sub3', [ Node('sub3sub1', [ Node('sub3sub1sub1', ) ]), Node('sub3sub2', ) ]) ]) print draw_tree(root)
and its output:
root +--sub1 +--sub2 | +--sub2sub1 +--sub3 +--sub3sub1 | +--sub3sub1sub1 +--sub3sub2
The module consists of a single public function, with the following signature:
draw_tree(node, child_iter, text_str)
where node is the root of the tree to be drawn, child_iter is a function that when called with a node, returns an iterable over all its children and text_str turns a node into the text to be displayed in the tree.
The default implementations of these two arguments retrieve the children by accessing node.children and simply use str(node) to convert a node to a string.
The resulting tree is drawn into a buffer and returned as a string.
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