Adding upstream version 1.6.4.

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

examples/recursive_dirtree_generator.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python
+
+"""
+Example of treelib usage to generate recursive tree of directories.
+It could be useful to implement Directory Tree data structure
+
+2016 samuelsh
+"""
+
+import treelib
+import random
+import hashlib
+from string import digits, letters
+import sys
+
+
+MAX_FILES_PER_DIR = 10
+
+
+def range2(stop):
+    if sys.version_info[0] < 3:
+        return xrange(stop)  # noqa: F821
+    else:
+        return range(stop)
+
+
+def get_random_string(length):
+    return "".join(random.choice(digits + letters) for _ in range2(length))
+
+
+def build_recursive_tree(tree, base, depth, width):
+    """
+    Args:
+        tree: Tree
+        base: Node
+        depth: int
+        width: int
+
+    Returns:
+
+    """
+    if depth >= 0:
+        depth -= 1
+        for i in range2(width):
+            directory = Directory()
+            tree.create_node(
+                "{0}".format(directory.name),
+                "{0}".format(hashlib.md5(directory.name)),
+                parent=base.identifier,
+                data=directory,
+            )  # node identifier is md5 hash of it's name
+        dirs_nodes = tree.children(base.identifier)
+        for dir in dirs_nodes:
+            newbase = tree.get_node(dir.identifier)
+            build_recursive_tree(tree, newbase, depth, width)
+    else:
+        return
+
+
+class Directory(object):
+    def __init__(self):
+        self._name = get_random_string(64)
+        self._files = [
+            File() for _ in range2(MAX_FILES_PER_DIR)
+        ]  # Each directory contains 1000 files
+
+    @property
+    def name(self):
+        return self._name
+
+    @property
+    def files(self):
+        return self._files
+
+
+class File(object):
+    def __init__(self):
+        self._name = get_random_string(64)
+
+    @property
+    def name(self):
+        return self._name
+
+
+tree = treelib.Tree()
+base = tree.create_node("Root", "root")
+build_recursive_tree(tree, base, 2, 10)
+
+tree.show()