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Element Tree for python 2.3.4 13 Years Ago by bertm81 Hey All, I have written a script that uses elementTree to work on python 2.4. Took quite a while and worked a threat but now I need to get it working on 2.3.4. I can't upgrade the version of python. Is there an equivelent version of the element tree for 2.3.4???? Re: Element Tree for python 2.3.4 13 Years Ago by TrustyTony what kind of error messages are you getting from elementtree? Re: Element Tree for python 2.3.4 13 Years Ago by bertm81 My program starts with [CODE] from lxml import etree [/CODE] but I get ImportError: No module named lxml and if I try to install the lxml library It tells me I need 2.4 Re: Element Tree for python 2.3.4 13 Years Ago by bertm81 OK. Found I need lxml-1.3.4 installed and then use xpath() instead of findall() Thanks for the reply :-) In desperate need of help with iterative insert method for avl tree. please help 16 Years Ago by Shana8426 … if (element.compareTo(tree.getInfo()) < 0) tree.setLeft(recRemove(element, tree.getLeft())); else if (element.compareTo(tree.getInfo()) > 0) tree.setRight(recRemove(element, tree.getRight())); else { tree = removeNode(tree); found… Binary Tree insert left and right node 14 Years Ago by dragonbone …gt; typedef char data; struct element{ data sym; element *left, *right; }; typedef element *Tree; Tree root=NULL; void insertLeft(Tree &root, data _symMatch, …==NULL)){ if(_symNode=='/') printf("\nDivisor\n"); Tree node = new element; node ->sym=_symNode; node ->left=node… Tree node deletion problem 10 Years Ago by sirlink99 …printInOrder(Node tree){ try{ if (tree.goLeft() != null) printInOrder(tree.goLeft()); System.out.print (tree.getPayload() + " (" + tree.getCount() + "), "); if (tree.goRight()…(1), during (1), e (1), effectively (1), efficiency (1), element (2), elements (1), event (1), field (1), followed (1), … Re: Tree node deletion problem 10 Years Ago by sirlink99 … , support , systems , the (21), then , there , thus , to (3), traversal , tree (4), trees , variable , well , when , where (2), which (2), will…(), n.getPayload())); n = delete(n, ""); // verifies that an element starting with a vowel did not replace the node } else… Re: Tree node deletion problem 10 Years Ago by sirlink99 ….setRight(delete(n.goRight())); n = delete(n); // verifies that an element starting with a vowel did not replace the node } else… , support , systems , the (21), then , there , thus , to (3), traversal , tree (4), trees , variable , well , when , where (2), which (2), will… Re: Tree node deletion problem 10 Years Ago by sirlink99 … the node which replaced it from the bottom of the tree. It worked once for the word "Key" and… Re: Tree node deletion problem 10 Years Ago by sirlink99 Thanks for the help I couldn't manage to get it working correctly. I will try to create my custom tree class that I can test and use without having all the constraints of the assignment to worry about. tree in java 13 Years Ago by eman 22 I want to use the tree in java but I found tree Set, Tree map I want to know each of them would be used and if I add element to the root how can I add element to this element. Re: tree in java 13 Years Ago by masijade Talking about elements in a Tree, you, then, don't want [i]either[/i] of those. Those are simple sets and maps and the "tree" portion of those only refer to the sorting order. If you [i]need[/i] a pre-finished class that can handle trees then see the API docs for DefaultTreeModel (normally used for JTree and GUIs). tree class and list class 16 Years Ago by didi00 Hi, I have two questions, if someone can help me please I need it urgently!! Thanks to all! 1. Tree class Make a function that counts the number of nodes with two children in a binary tree. 2. List class Make a function that prints the elements of the list with first element (START), that do not repeat. Re: tree class and list class 16 Years Ago by didi00 …question: #include<iostream.h> struct tree { char key; tree *left; tree *right; }*root=NULL; void main(){ char… add(c,root); cout<<"Tree:"; cout<<"nodes with 2… ONLY nodes with 2 children.Help? int count(tree *t){ if (t==NULL) return 0; … Re: Tree Concepts 10 Years Ago by mike_2000_17 …;Binary Search Tree". Once you have a binary search tree constructed, searching for a particular element or range is…not (go right). The real trick is constructing that tree, and especially, maintaining it (i.e., dynamically inserting … and/or design special algorithms to keep the tree reasonably balanced (all leaf nodes at roughly the… Re: Tree traversal 15 Years Ago by JimD C++ Newb … found that is the last key it added to my tree had a value of 0. I fixed(put a bandaid… on?) the problem by adding [code] if (key == 0) { tree.remove(key); } [/code] But I was wondering if there was… a way to stop the program from adding the 6th element with key value 0 in the first place. Well let… Tree set problem 12 Years Ago by anand01 Hi all, When I run use to add second element in the tree set it shows java.lang.ClassCastException: could any one explain… Re: Tree set problem 12 Years Ago by ~s.o.s~ … fixed in JDK 7. Previously, adding a single non-comparable element to the TreeSet didn't cause any problem but as… new one. AFAIK, in JDK 7, adding a non-comparable element to TreeSet without a custom Comparator causes a runtime exception. Tree set problem 12 Years Ago by anand01 … 1) what is mean by those true statement here ? 2) element 629 and 630 i added after subset operation still it… Re: Binary Tree insert left and right node 14 Years Ago by dkalita … of your logic. wen u didn't match the matching element u are always going left and as u can see…. u first clarify where u want to insert a new element and what parameters u want for that. Re: Binary Tree insert left and right node 14 Years Ago by dkalita … paper. and your symbol '*' should not get inserted to the tree. after line 4: ................ '-' ............ '-' .... 'g' ......... 'e' after line 5: … ......... 'e' [becoz it wont find the symbol '+'] your final tree should be: ................ '-' ............ '-' .... 'g' ......... 'e' hope that helps… Binary Search Tree 12 Years Ago by billingsj09 … n) { right = n; } // getElement - return element. public void setElement(Comparable c) { element = c; } // Print this tree's elements in pre-order each… right.postOrder( ); System.out.print( element + " " ); } // Returns true is item is foundin this tree else returns false. public boolean find… Binary Search Tree problem 12 Years Ago by turkgames …; typedef struct tree { int data; struct tree *right, *left; } TREE; TREE *insert(TREE *, int); //TREE *findmax(TREE); void order(TREE *); int main() { TREE *root = NULL; int option, element, n, i… Re: Binary Search Tree problem 12 Years Ago by deceptikon …; struct tree *right, *left; } TREE; TREE *insert(TREE *, int); TREE *findmax(TREE *); void order(TREE *); void structure(TREE *root, int depth); int main() { TREE *root = NULL; int option, element, n… Re: Binary Search Tree 12 Years Ago by billingsj09 …(new File("file1.txt")); Integer element = new Integer(sc.nextInt()); Comparable c;…== null) { left = new BinaryNode(element); } else return left.buildTree(element); } else if (c.compareTo(element) > 0) { if (right… Re: Binary Search Tree 12 Years Ago by billingsj09 ….right = new BinaryNode(element); } } } } catch (FileNotFoundException e) { e.printStackTrace(); } } // Returns true if item is found in this tree else returns false. public… Re: Binary Search Tree 12 Years Ago by billingsj09 … from text file and build this search tree.. public void buildTree(String fileName){ int element = 0; Comparable c = null; try{ Scanner sc… Scanner(new File(fileName)); while(sc.hasNextInt()){ BinaryNode tempRoot = root; element = Integer.parseInt(sc.next()); if(root == null) root = new … Binary Tree Min And Max Value Crashing Need Help 9 Years Ago by Arjun_4 … search and replace an element in the binary tree */ struct tree *search(struct tree *root) { int no,i,ino; struct tree *ptr; ptr=root; printf…("\n Enter the element to… Binary Tree - Works in C++ 6.0 but doesn't work in VS2008 15 Years Ago by Duki …matching // item's key // Post: No element in tree has key matching item's key void resetTree(…& fini); // Function: Gets the next element in the tree in the order specified in order // Pre: …= (current position is last in tree) // item is a copy of element at current position void printTree(std::…