Adding upstream version 1.6.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

docs/source/conf.py

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+# -*- coding: utf-8 -*-
+#
+# Configuration file for the Sphinx documentation builder.
+#
+# This file does only contain a selection of the most common options. For a
+# full list see the documentation:
+# http://www.sphinx-doc.org/en/master/config
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#
+import os
+import sys
+sys.path.insert(0, os.path.abspath('../..'))
+
+from setup import __version__
+
+# -- Project information -----------------------------------------------------
+
+project = u'treelib'
+copyright = u'2018, Xiaming Chen'
+author = u'Xiaming Chen'
+
+# The short X.Y version
+version = __version__
+# The full version, including alpha/beta/rc tags
+release = __version__
+
+
+# -- General configuration ---------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#
+# needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.coverage',
+    'sphinx.ext.mathjax',
+    'sphinx.ext.viewcode',
+    'sphinx.ext.githubpages',
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix(es) of source filenames.
+# You can specify multiple suffix as a list of string:
+#
+# source_suffix = ['.rst', '.md']
+source_suffix = '.rst'
+
+# The master toctree document.
+master_doc = 'index'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#
+# This is also used if you do content translation via gettext catalogs.
+# Usually you set "language" from the command line for these cases.
+language = None
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path.
+exclude_patterns = []
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = None
+
+
+# -- Options for HTML output -------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+html_theme = 'alabaster'
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#
+# html_theme_options = {}
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# Custom sidebar templates, must be a dictionary that maps document names
+# to template names.
+#
+# The default sidebars (for documents that don't match any pattern) are
+# defined by theme itself.  Builtin themes are using these templates by
+# default: ``['localtoc.html', 'relations.html', 'sourcelink.html',
+# 'searchbox.html']``.
+#
+# html_sidebars = {}
+
+
+# -- Options for HTMLHelp output ---------------------------------------------
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'treelibdoc'
+
+
+# -- Options for LaTeX output ------------------------------------------------
+
+latex_elements = {
+    # The paper size ('letterpaper' or 'a4paper').
+    #
+    # 'papersize': 'letterpaper',
+
+    # The font size ('10pt', '11pt' or '12pt').
+    #
+    # 'pointsize': '10pt',
+
+    # Additional stuff for the LaTeX preamble.
+    #
+    # 'preamble': '',
+
+    # Latex figure (float) alignment
+    #
+    # 'figure_align': 'htbp',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+    (master_doc, 'treelib.tex', u'treelib Documentation',
+     u'Xiaming Chen', 'manual'),
+]
+
+
+# -- Options for manual page output ------------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    (master_doc, 'treelib', u'treelib Documentation',
+     [author], 1)
+]
+
+
+# -- Options for Texinfo output ----------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+    (master_doc, 'treelib', u'treelib Documentation',
+     author, 'treelib', 'One line description of project.',
+     'Miscellaneous'),
+]
+
+
+# -- Options for Epub output -------------------------------------------------
+
+# Bibliographic Dublin Core info.
+epub_title = project
+
+# The unique identifier of the text. This can be a ISBN number
+# or the project homepage.
+#
+# epub_identifier = ''
+
+# A unique identification for the text.
+#
+# epub_uid = ''
+
+# A list of files that should not be packed into the epub file.
+epub_exclude_files = ['search.html']
+
+
+# -- Extension configuration -------------------------------------------------
+
+# -- Options for intersphinx extension ---------------------------------------
+
+# Example configuration for intersphinx: refer to the Python standard library.
+intersphinx_mapping = {'https://docs.python.org/': None}

docs/source/index.rst

@@ -0,0 +1,241 @@
+.. treelib documentation master file, created by
+   sphinx-quickstart on Thu Dec 20 16:30:18 2018.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to treelib's documentation!
+***********************************
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+
+Introduction
+============
+
+`Tree <http://en.wikipedia.org/wiki/Tree_%28data_structure%29>`_ is an
+important data structure in computer science. Examples are shown in ML algorithm designs such as random forest tree and software engineering such as file system index. `treelib <https://github.com/caesar0301/pyTree>`_ is created to provide an efficient implementation of tree data structure in Python.
+
+The main features of `treelib` includes:
+   * Efficient operation of node searching, O(1).
+   * Support common tree operations like **traversing**, **insertion**, **deletion**, **node moving**, **shallow/deep copying**, **subtree cutting** etc.
+   * Support user-defined data payload to accelerate your model construction.
+   * Pretty tree showing and text/json dump for pretty show and offline analysis.
+   * Compatible with Python 2 and 3.
+
+Installation
+============
+
+The rapidest way to install treelib is using the package management tools like
+``easy_install`` or ``pip`` with command
+
+	.. code-block:: sh
+
+		$ sudo easy_install -U treelib
+
+or the setup script
+
+	.. code-block:: sh
+
+		$ sudo python setup.py install
+
+**Note**: With the package management tools, the hosted version may be falling
+behind current development branch on `Github
+<https://github.com/caesar0301/pyTree>`_. If you encounter some problems, try
+the freshest version on Github or open `issues
+<https://github.com/caesar0301/pyTree/issues>`_ to let me know your problem.
+
+Examples
+========
+
+Basic Usage
+-------------
+
+.. code-block:: sh
+
+    >>> from treelib import Node, Tree
+    >>> tree = Tree()
+    >>> tree.create_node("Harry", "harry")  # root node
+    >>> tree.create_node("Jane", "jane", parent="harry")
+    >>> tree.create_node("Bill", "bill", parent="harry")
+    >>> tree.create_node("Diane", "diane", parent="jane")
+    >>> tree.create_node("Mary", "mary", parent="diane")
+    >>> tree.create_node("Mark", "mark", parent="jane")
+    >>> tree.show()
+    Harry
+    ├── Bill
+    └── Jane
+        ├── Diane
+        │   └── Mary
+        └── Mark
+
+
+API Examples
+--------------
+
+**Example 1**: Expand a tree with specific mode (Tree.DEPTH [default],
+Tree.WIDTH, Tree.ZIGZAG).
+
+.. code-block:: sh
+
+    >>> print(','.join([tree[node].tag for node in \
+                tree.expand_tree(mode=Tree.DEPTH)]))
+    Harry,Bill,Jane,Diane,Mary,Mark
+
+**Example 2**: Expand tree with custom filter.
+
+.. code-block:: sh
+
+    >>> print(','.join([tree[node].tag for node in \
+                tree.expand_tree(filter = lambda x: \
+                x.identifier != 'diane')]))
+    Harry,Bill,Jane,Mark
+
+**Example 3**: Get a subtree with the root of 'diane'.
+
+.. code-block:: sh
+
+    >>> sub_t = tree.subtree('diane')
+    >>> sub_t.show()
+    Diane
+    └── Mary
+
+**Example 4**: Paste a new tree to the original one.
+
+.. code-block:: sh
+
+    >>> new_tree = Tree()
+    >>> new_tree.create_node("n1", 1)  # root node
+    >>> new_tree.create_node("n2", 2, parent=1)
+    >>> new_tree.create_node("n3", 3, parent=1)
+    >>> tree.paste('bill', new_tree)
+    >>> tree.show()
+    Harry
+    ├── Bill
+    │   └── n1
+    │       ├── n2
+    │       └── n3
+    └── Jane
+        ├── Diane
+        │   └── Mary
+        └── Mark
+
+**Example 5**: Remove the existing node from the tree
+
+.. code-block:: sh
+
+    >>> tree.remove_node(1)
+    >>> tree.show()
+    Harry
+    ├── Bill
+    └── Jane
+        ├── Diane
+        │   └── Mary
+        └── Mark
+
+**Example 6**: Move a node to another parent.
+
+.. code-block:: sh
+
+    >>> tree.move_node('mary', 'harry')
+    >>> tree.show()
+    Harry
+    ├── Bill
+    ├── Jane
+    │   ├── Diane
+    │   └── Mark
+    └── Mary
+
+**Example 7**: Get the height of the tree.
+
+.. code-block:: sh
+
+    >>> tree.depth()
+    2
+
+**Example 8**: Get the level of a node.
+
+.. code-block:: sh
+
+    >>> node = tree.get_node("bill")
+    >>> tree.depth(node)
+    1
+
+**Example 9**: Print or dump tree structure. For example, the same tree in
+ basic example can be printed with 'ascii-em':
+
+.. code-block:: sh
+
+    >>> tree.show(line_type="ascii-em")
+    Harry
+    ╠══ Bill
+    ╠══ Jane
+    ║   ╠══ Diane
+    ║   ╚══ Mark
+    ╚══ Mary
+
+In the JSON form, to_json() takes optional parameter with_data to trigger if
+the data field is appended into JSON string. For example,
+
+.. code-block:: sh
+
+    >>> print(tree.to_json(with_data=True))
+    {"Harry": {"data": null, "children": [{"Bill": {"data": null}}, {"Jane": {"data": null, "children": [{"Diane": {"data": null}}, {"Mark": {"data": null}}]}}, {"Mary": {"data": null}}]}}
+
+**Example 10**: Save tree into file
+  The function save2file require a filename.
+  The file is opened to write using mode 'ab'.
+
+.. code-block:: sh
+
+    >>> tree.save2file('tree.txt')
+
+
+Advanced Usage
+----------------
+
+Sometimes, you need trees to store your own data. The newest version of
+:mod:`treelib` supports ``.data`` variable to store whatever you want. For
+example, to define a flower tree with your own data:
+
+.. code-block:: sh
+
+    >>> class Flower(object): \
+            def __init__(self, color): \
+                self.color = color
+
+You can create a flower tree now:
+
+.. code-block:: sh
+
+    >>> ftree = Tree()
+    >>> ftree.create_node("Root", "root", data=Flower("black"))
+    >>> ftree.create_node("F1", "f1", parent='root', data=Flower("white"))
+    >>> ftree.create_node("F2", "f2", parent='root', data=Flower("red"))
+
+Printing the colors of the tree:
+
+.. code-block:: sh
+
+    >>> ftree.show(data_property="color")
+        black
+        ├── white
+        └── red
+
+**Notes:** Before version 1.2.5, you may need to inherit and modify the behaviors of tree. Both are supported since then. For flower example,
+
+.. code-block:: sh
+
+    >>> class FlowerNode(treelib.Node): \
+            def __init__(self, color): \
+                self.color = color
+    >>> # create a new node
+    >>> fnode = FlowerNode("white")
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`

docs/source/modules.rst

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+treelib
+=======
+
+.. toctree::
+   :maxdepth: 4
+
+   treelib

docs/source/treelib.rst

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+treelib package
+===============
+
+Module contents
+---------------
+
+.. automodule:: treelib
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+Submodules
+----------
+
+treelib.node module
+-------------------
+
+.. automodule:: treelib.node
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+treelib.tree module
+-------------------
+
+.. automodule:: treelib.tree
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+treelib.plugins module
+----------------------
+
+.. automodule:: treelib.plugins
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+treelib.exceptions module
+-------------------------
+
+.. automodule:: treelib.exceptions
+    :members:
+    :undoc-members:
+    :show-inheritance: