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Version 0.8.2

  • TreeMixin.to_dot should produce dot-file, not an image.

Version 0.8.1

  • node.identifier = node.identifier no longer raises a DuplicateChildError. It has now become a no-op.

Version 0.8.0

  • Package is now based on AbstractTree. The API has been revamped:
    • Methods tree.iter_nodes and similar renamed to iter(tree.nodes)
    • Methods tree.count_nodes and similar renamed to tree.nodes.count()
    • Method Node.to_image() now returns bytes. Use Node.to_pillow to get an image.
    • littletree.export.* is gone. Use abstracttree.export.* or TreeMixin.* instead.
    • Methods add_child, add_children and remove_child have been added to BaseNode.
    • Change transform to match abstract signature:
      • Possible to change identifier when transforming
      • Function takes just a node as argument.
    • Route has a slightly different api.
  • Rename NodeMixin to TreeMixin
  • Move BaseNode.path.to to TreeMixin.to.

Version 0.6.2

  • Make better use of NodeMixin
  • Make sure most exporter work directly on NodeMixin
  • Move exporter functions (from Node) directly to NodeMixin.

Version 0.6.1

  • Remove PathTo class.
  • Add class Route which is a generic version of the old PathTo class.

Version 0.6.0

  • Add NodeMixin class, which provides something even more basic than BaseNode.
  • Add parameters keep and deep to tree.copy(). So a pruned copy can be made by doing tree.copy(keep=MaxDepth(3)).
  • Calling iter_leaves on a node that is a leaf now correctly yields an iterable containing just that Node.
  • Fix iter_siblings to use identity instead of equality.
  • Methods sort_children, update and clear no longer return self, but None.

Version 0.5.1

  • Remove dataclasses (slots). Doesn't work until python3.10.
  • Improve RowSerializer for pandas dataframe.
  • Add newlines to output of node.to_dot() and node.to_mermaid().

Version 0.5.0

  • Add NetworkXSerializer for conversion to and from networkx.
  • Faster implementation of __eq__ for deep trees.
  • Two trees can now be equal (==) if their roots have a different identifier.
  • Replace argument str_factory by formatter in tree.show() and tree.to_string. If passed a string, it will be applied as formatter.format(node=node).

Version 0.4.1

Fix bug in tree.compare method

Version 0.4.0

  • Improve DotExporter
    • Rename name_factory to node_name.
    • Derive file type from file extension if possible. Fall back on png.
    • Add graph_attributes.
    • Make attribute handling more intelligent. Distinguish static and dynamic properties.
    • Add parameter directed (default: True).
    • Remove whitespace around arrows for compacter file size.
  • Add MermaidExporter. Similar to DotExporter, but supported by GitHub.
  • Make tree.children writable for more compatibility with anytree/bigtree
  • Add parameters backend and node_label to tree.to_image()

Version 0.3.0

  • Remove tree.show(img=True). Use tree.to_image().show() instead.
  • New method tree.transform() that creates a modified or pruned copy of a tree.
  • New method tree.compare() that compares different trees to each other.
  • Rewrite copy() in terms of transform. Use tree.copy() for shallow copy. Use tree.copy({}) for deep copy.
  • Remove style minimal, but add style list for tree.show().
  • Add option escape_comments to newick serializer to escape newick modifiers in node data.
  • For now use distance and comment instead of distance_field and comment_field in NewickSerializer.
  • Changed default format of to_dict to contain identifier.
  • Rewrite RowSerializer
  • Refactor RelationSerializer

Version 0.2.3

  • Streamline DotExporter. Create temporary files in memory. Add option as_bytes to to_image(). Remove unused parameter separator.
  • Add more default styles to StringExporter. Some have been renamed. const has been renamed to square.
  • Simplify signature of from_newick. It accepts a string. For files a Path or file object should be passed.
  • Add tree.show() for quickly rendering a tree to console. Same as print(tree.to_string()).

Version 0.2.2

  • Make dictserialization work on large trees.

Version 0.2.1

  • Improve newick serialization. It's much faster now and works on big trees.
  • Because of how it is implemented, it now also works on preorder format A(b, c), even though the standard form is (b, c)A.

Version 0.2.0

  • Add node.path.to
  • Remove node.height(). Tutorial shows alternative one-liner.
  • Fix bug in post-order iteration
  • Fix bug in copy and deepcopy
  • Add support for serializing to and from Newick format