I've tried to create an implementation of a tree for comments. I want use it in Django to store comments. Please tell me how to implement it much simpler, without recursion, to find child nodes.class commentTree(object):def __init__(self, id, data, parentId = 0, childrens = None):    Represents one leaf Tree    self.id = id    self.parentId = parentId    self.title = data['title']    self.body = data['body']    self.childrens = []    self.isLeaf = True if len(self.childrens) > 0 else False    if childrens is not None:        for children in childrens:            self.childrens.append(children)def addComment(self, parentId, data):    root = 1 if self.isLeaf == False else 0    comment = commentTree(parentId + root + len(self.childrens), data, self.id)    if parentId == self.id:        self.childrens.append(comment)    else:        node = self.findById(parentId)        node.childrens.append(comment)def getParent(self, node):    Gets parent node    if self.parent is not None:        return self.parentdef getSize(self, node):    Returns size of childrens length + node    return len(node.childrens) + 1def findById(self, id):    def searchInChildren(id, childNodes):        for children in childNodes:            if children.id == id:                return children            else:                searchInChildren(id, children)    if id == self.id:        return self    else:       result = searchInChildren(id, self.childrens)       if result.id == id:           return result       else: return Nonedef getSiblings(self, node):    Get nodes that have one parent    nodes = []    def getAllChildrens(self, child):        for children in node.childrens:            nodes.append(children)            if children.isLeaf:                getAllChildrens(self, children)    getAllChildrens(self, node)    return nodes
Try to implement comments tree for Django
python;tree;python 2.7;django