diff --git a/.bzrignore b/.bzrignore
index 9b867797a34..b44befc61b4 100644
--- a/.bzrignore
+++ b/.bzrignore
@@ -3,3 +3,17 @@
 .bzrignore
 bin/addons/*
 bin/filestore*
+.Python
+include
+lib
+bin/activate
+bin/activate_this.py
+bin/easy_install
+bin/easy_install-2.6
+bin/pip
+bin/python
+bin/python2.6
+*.pyc
+*.pyo
+build/
+bin/yolk
diff --git a/bin/openerp-server.py b/bin/openerp-server.py
index 33b5fef9aeb..72e441546e2 100755
--- a/bin/openerp-server.py
+++ b/bin/openerp-server.py
@@ -1,5 +1,5 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
+#!/usr/bin/python
+# -*- encoding: utf-8 -*-
 ##############################################################################
 #    
 #    OpenERP, Open Source Management Solution
@@ -207,4 +207,3 @@ while True:
     time.sleep(60)
 
 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
-
diff --git a/bin/osv/orm.py b/bin/osv/orm.py
index 6fbb29ee811..d176609101d 100644
--- a/bin/osv/orm.py
+++ b/bin/osv/orm.py
@@ -1254,7 +1254,7 @@ class orm_template(object):
                     if pos == 'replace':
                         parent = node.getparent()
                         if parent is None:
-                            src = copy.deepcopy(node2.getchildren()[0])
+                            src = copy.deepcopy(node2[0])
                         else:
                             for child in node2:
                                 node.addprevious(child)
diff --git a/bin/report/custom.py b/bin/report/custom.py
index 2c9fe0009bc..0b8aeb88bbe 100644
--- a/bin/report/custom.py
+++ b/bin/report/custom.py
@@ -32,12 +32,10 @@ from osv.osv import except_osv
 from osv.orm import browse_null
 from osv.orm import browse_record_list
 import pooler
-from xml.dom import minidom
-import libxml2
-import libxslt
 from pychart import *
 import misc
 import cStringIO
+from lxml import etree
 
 class external_pdf(render.render):
     def __init__(self, pdf):
@@ -286,17 +284,13 @@ class report_custom(report_int):
         if report['print_orientation']=='landscape':
             pageSize=[pageSize[1],pageSize[0]]
 
-        impl = minidom.getDOMImplementation()
-        new_doc = impl.createDocument(None, "report", None)
+        new_doc = etree.Element('report')
         
-        # build header
-        config = new_doc.createElement("config")
+        config = etree.SubElement(new_doc, 'config')
 
         def _append_node(name, text):
-            n = new_doc.createElement(name)
-            t = new_doc.createTextNode(text)
-            n.appendChild(t)
-            config.appendChild(n)
+            n = etree.SubElement(config, name)
+            t.text = text
 
         _append_node('date', time.strftime('%d/%m/%Y'))
         _append_node('PageFormat', '%s' % report['print_format'])
@@ -316,45 +310,33 @@ class report_custom(report_int):
         _append_node('report-header', '%s' % (report['title'],))
         _append_node('report-footer', '%s' % (report['footer'],))
 
-        new_doc.childNodes[0].appendChild(config)
-        header = new_doc.createElement("header")
-        
+        header = etree.SubElement(new_doc, 'header')
         for f in fields:
-            field = new_doc.createElement("field")
-            field_txt = new_doc.createTextNode('%s' % (f['name'],))
-            field.appendChild(field_txt)
-            header.appendChild(field)
-        
-        new_doc.childNodes[0].appendChild(header)
+            field = etree.SubElement(header, 'field')
+            field.text = f['name']
 
-        lines = new_doc.createElement("lines")
+        lines = etree.SubElement(new_doc, 'lines')
         level.reverse()
         for line in results:
             shift = level.pop()
-            node_line = new_doc.createElement("row")
+            node_line = etree.SubElement(lines, 'row')
             prefix = '+'
             for f in range(len(fields)):
-                col = new_doc.createElement("col")
+                col = etree.SubElement(node_line, 'col')
                 if f == 0:
-                    col.setAttribute('para','yes')
-                    col.setAttribute('tree','yes')
-                    col.setAttribute('space',str(3*shift)+'mm')
+                    col.attrib.update(para='yes',
+                                      tree='yes',
+                                      space=str(3*shift)+'mm')
                 if line[f] != None:
-                    txt = new_doc.createTextNode(prefix+str(line[f]) or '')
+                    col.text = prefix+str(line[f]) or ''
                 else:
-                    txt = new_doc.createTextNode('/')
-                col.appendChild(txt)
-                node_line.appendChild(col)
+                    col.text = '/'
                 prefix = ''
-            lines.appendChild(node_line)
-            
-        new_doc.childNodes[0].appendChild(lines)
 
-        styledoc = libxml2.parseFile(os.path.join(tools.config['root_path'],'addons/base/report/custom_new.xsl'))
-        style = libxslt.parseStylesheetDoc(styledoc)
-        doc = libxml2.parseDoc(new_doc.toxml())
-        rml_obj = style.applyStylesheet(doc, None)
-        rml = style.saveResultToString(rml_obj) 
+        transform = etree.XSLT(
+            etree.parse(os.path.join(tools.config['root_path'],
+                                     'addons/base/report/custom_new.xsl')))
+        rml = etree.tostring(transform(new_doc))
 
         self.obj = render.rml(rml)
         self.obj.render()
@@ -591,17 +573,12 @@ class report_custom(report_int):
         if report['print_orientation']=='landscape':
             pageSize=[pageSize[1],pageSize[0]]
 
-        impl = minidom.getDOMImplementation()
-        new_doc = impl.createDocument(None, "report", None)
-        
-        # build header
-        config = new_doc.createElement("config")
+        new_doc = etree.Element('report')
+        config = etree.SubElement(new_doc, 'config')
 
         def _append_node(name, text):
-            n = new_doc.createElement(name)
-            t = new_doc.createTextNode(text)
-            n.appendChild(t)
-            config.appendChild(n)
+            n = etree.SubElement(config, name)
+            n.text = text
 
         _append_node('date', time.strftime('%d/%m/%Y'))
         _append_node('PageSize', '%.2fmm,%.2fmm' % tuple(pageSize))
@@ -621,40 +598,25 @@ class report_custom(report_int):
         _append_node('report-header', '%s' % (report['title'],))
         _append_node('report-footer', '%s' % (report['footer'],))
 
-        new_doc.childNodes[0].appendChild(config)
-        header = new_doc.createElement("header")
-        
+        header = etree.SubElement(new_doc, 'header')
         for f in fields:
-            field = new_doc.createElement("field")
-            field_txt = new_doc.createTextNode('%s' % (f['name'],))
-            field.appendChild(field_txt)
-            header.appendChild(field)
-        
-        new_doc.childNodes[0].appendChild(header)
+            field = etree.SubElement(header, 'field')
+            field.text = f['name']
 
-        lines = new_doc.createElement("lines")
+        lines = etree.SubElement(new_doc, 'lines')
         for line in results:
-            node_line = new_doc.createElement("row")
+            node_line = etree.SubElement(lines, 'row')
             for f in range(len(fields)):
-                col = new_doc.createElement("col")
-                col.setAttribute('tree','no')
+                col = etree.SubElement(node_line, 'col', tree='no')
                 if line[f] != None:
-                    txt = new_doc.createTextNode(str(line[f] or ''))
+                    col.text = line[f] or ''
                 else:
-                    txt = new_doc.createTextNode('/')
-                col.appendChild(txt)
-                node_line.appendChild(col)
-            lines.appendChild(node_line)    
-            
-        new_doc.childNodes[0].appendChild(lines)
+                    col.text = '/'
 
-#       file('/tmp/terp.xml','w+').write(new_doc.toxml())
-
-        styledoc = libxml2.parseFile(os.path.join(tools.config['root_path'],'addons/base/report/custom_new.xsl'))
-        style = libxslt.parseStylesheetDoc(styledoc)
-        doc = libxml2.parseDoc(new_doc.toxml())
-        rml_obj = style.applyStylesheet(doc, None)
-        rml = style.saveResultToString(rml_obj) 
+        transform = etree.XSLT(
+            etree.parse(os.path.join(tools.config['root_path'],
+                                     'addons/base/report/custom_new.xsl')))
+        rml = etree.tostring(transform(new_doc))
 
         self.obj = render.rml(rml)
         self.obj.render()
diff --git a/bin/report/interface.py b/bin/report/interface.py
index e1dd37dbe2e..5ae8fb021c2 100644
--- a/bin/report/interface.py
+++ b/bin/report/interface.py
@@ -22,8 +22,6 @@
 import os
 import re
 
-import libxml2
-import libxslt
 from lxml import etree
 import netsvc
 import pooler
@@ -146,48 +144,34 @@ class report_rml(report_int):
         if not self.xsl:
             return xml
 
-        # load XSL (parse it to the XML level)
-        styledoc = libxml2.parseDoc(tools.file_open(self.xsl).read())
-        xsl_path, tail = os.path.split(self.xsl)
-        for child in styledoc.children:
-            if child.name == 'import':
-                if child.hasProp('href'):
-                    imp_file = child.prop('href')
-                    _x, imp_file = tools.file_open(imp_file, subdir=xsl_path, pathinfo=True)
-                    child.setProp('href', urllib.quote(str(imp_file)))
+        stylesheet = etree.parse(tools.file_open(self.xsl))
+        xsl_path, _ = os.path.split(self.xsl)
+        for import_child in stylesheet.findall('./import'):
+            if 'href' in import_child.attrib:
+                imp_file = import_child.get('href')
+                _, imp_file = tools.file_open(imp_file, subdir=xsl_path, pathinfo=True)
+                import_child.set('href', urllib.quote(str(imp_file)))
 
         #TODO: get all the translation in one query. That means we have to:
         # * build a list of items to translate,
         # * issue the query to translate them,
         # * (re)build/update the stylesheet with the translated items
 
-        # translate the XSL stylesheet
-        def look_down(child, lang):
-            while child is not None:
-                if (child.type == "element") and child.hasProp('t'):
-                    #FIXME: use cursor
-                    res = service.execute(cr.dbname, uid, 'ir.translation',
-                            '_get_source', self.name2, 'xsl', lang, child.content)
-                    if res:
-                        child.setContent(res.encode('utf-8'))
-                look_down(child.children, lang)
-                child = child.next
+        def translate(doc, lang):
+            for node in doc.xpath('//*[@t]'):
+                translation = service.execute(
+                    cr.dbname, uid, 'ir.translation', '_get_source',
+                    self.name2, 'xsl', lang, node.text)
+                if translation:
+                    node.text = translation
 
         if context.get('lang', False):
-            look_down(styledoc.children, context['lang'])
+            translate(stylesheet, context['lang'])
 
-        # parse XSL
-        style = libxslt.parseStylesheetDoc(styledoc)
-        # load XML (data)
-        doc = libxml2.parseMemory(xml,len(xml))
-        # create RML (apply XSL to XML data)
-        result = style.applyStylesheet(doc, None)
-        # save result to string
-        xml = style.saveResultToString(result)
+        transform = etree.XSLT(stylesheet)
+        xml = etree.tostring(
+            transform(etree.fromstring(xml)))
 
-        style.freeStylesheet()
-        doc.freeDoc()
-        result.freeDoc()
         return xml
 
     def create_pdf(self, rml, localcontext = None, logo=None, title=None):
diff --git a/bin/report/print_xml.py b/bin/report/print_xml.py
index 535285e6a69..2c24d3766f3 100644
--- a/bin/report/print_xml.py
+++ b/bin/report/print_xml.py
@@ -121,8 +121,7 @@ class document(object):
 #TODO: test this
                     if value == '' and 'default' in attrs:
                         value = attrs['default']
-                    el = etree.Element(node.tag)
-                    parent.append(el)
+                    el = etree.SubElement(parent, node.tag)
                     el.text = tounicode(value)
 #TODO: test this
                     for key, value in attrs.iteritems():
@@ -154,31 +153,27 @@ class document(object):
                             fp.write(dt)
                             i = str(len(self.bin_datas))
                             self.bin_datas[i] = fp
-                            el = etree.Element(node.tag)
+                            el = etree.SubElement(parent, node.tag)
                             el.text = i
-                            parent.append(el)
 
                 elif attrs['type']=='data':
 #TODO: test this
                     txt = self.datas.get('form', {}).get(attrs['name'], '')
-                    el = etree.Element(node.tag)
+                    el = etree.SubElement(parent, node.tag)
                     el.text = txt
-                    parent.append(el)
 
                 elif attrs['type']=='function':
                     if attrs['name'] in self.func:
                         txt = self.func[attrs['name']](node)
                     else:
                         txt = print_fnc.print_fnc(attrs['name'], node)
-                    el = etree.Element(node.tag)
+                    el = etree.SubElement(parent, node.tag)
                     el.text = txt
-                    parent.append(el)
 
                 elif attrs['type']=='eval':
                     value = self.eval(browser, attrs['expr'])
-                    el = etree.Element(node.tag)
+                    el = etree.SubElement(parent, node.tag)
                     el.text = str(value)
-                    parent.append(el)
 
                 elif attrs['type']=='fields':
                     fields = attrs['name'].split(',')
@@ -196,8 +191,7 @@ class document(object):
 
                     v_list = [vals[k] for k in keys]
                     for v in v_list:
-                        el = etree.Element(node.tag)
-                        parent.append(el)
+                        el = etree.SubElement(parent, node.tag)
                         for el_cld in node:
                             self.parse_node(el_cld, el, v)
 
@@ -231,8 +225,7 @@ class document(object):
 
                     def parse_result_tree(node, parent, datas):
                         if not node.tag == etree.Comment:
-                            el = etree.Element(node.tag)
-                            parent.append(el)
+                            el = etree.SubElement(parent, node.tag)
                             atr = self.node_attrs_get(node)
                             if 'value' in atr:
                                 if not isinstance(datas[atr['value']], (str, unicode)):
@@ -256,8 +249,7 @@ class document(object):
                         else:
                             v_list = value
                         for v in v_list:
-                            el = etree.Element(node.tag)
-                            parent.append(el)
+                            el = etree.SubElement(parent, node.tag)
                             for el_cld in node:
                                 self.parse_node(el_cld, el, v)
             else:
@@ -266,8 +258,7 @@ class document(object):
                     if node.tag == parent.tag:
                         el = parent
                     else:
-                        el = etree.Element(node.tag)
-                        parent.append(el)
+                        el = etree.SubElement(parent, node.tag)
                     for el_cld in node:
                         self.parse_node(el_cld,el, browser)
     def xml_get(self):
diff --git a/bin/report/printscreen/ps_form.py b/bin/report/printscreen/ps_form.py
index 60976577201..2ee22ebcaf9 100644
--- a/bin/report/printscreen/ps_form.py
+++ b/bin/report/printscreen/ps_form.py
@@ -25,8 +25,6 @@ import tools
 
 from report import render
 from lxml import etree
-import libxml2
-import libxslt
 
 import time, os
 
@@ -77,21 +75,18 @@ class report_printscreen_list(report_int):
     def _create_table(self, uid, ids, fields, fields_order, results, context, title=''):
         pageSize=[297.0,210.0]
 
-        impl = minidom.getDOMImplementation()
         new_doc = etree.Element("report")
-        config = etree.Element("config")
+        config = etree.SubElement(new_doc, 'config')
 
         # build header
         def _append_node(name, text):
-            n = etree.Element(name)
+            n = etree.SubElement(config, name)
             n.text = text
-            config.append(n)
 
         _append_node('date', time.strftime('%d/%m/%Y'))
         _append_node('PageSize', '%.2fmm,%.2fmm' % tuple(pageSize))
         _append_node('PageWidth', '%.2f' % (pageSize[0] * 2.8346,))
         _append_node('PageHeight', '%.2f' %(pageSize[1] * 2.8346,))
-
         _append_node('report-header', title)
 
         l = []
@@ -110,17 +105,15 @@ class report_printscreen_list(report_int):
                 s = fields[fields_order[pos]].get('size', 56) / 28 + 1
                 l[pos] = strmax * s / t
         _append_node('tableSize', ','.join(map(str,l)) )
-        new_doc.append(config)
-        header=etree.Element("header")
 
+        header = etree.SubElement(new_doc, 'header')
         for f in fields_order:
-            field = etree.Element("field")
+            field = etree.SubElement(header, 'field')
             field.text = fields[f]['string'] or ''
-            header.append(field)
-        new_doc.append(header)
-        lines = etree.Element("lines")
+
+        lines = etree.SubElement(new_doc, 'lines')
         for line in results:
-            node_line = etree.Element("row")
+            node_line = etree.SubElement(lines, 'row')
             for f in fields_order:
                 if fields[f]['type']=='many2one' and line[f]:
                     line[f] = line[f][1]
@@ -129,21 +122,17 @@ class report_printscreen_list(report_int):
                 if fields[f]['type'] == 'float':
                     precision=(('digits' in fields[f]) and fields[f]['digits'][1]) or 2
                     line[f]=round(line[f],precision)
-                col = etree.Element("col")
-                col.set('tree','no')
+                col = etree.SubElement(node_line, 'col', tree='no')
                 if line[f] != None:
                      col.text = tools.ustr(line[f] or '')
                 else:
                     col.text = '/'
-                node_line.append(col)
-            lines.append(node_line)
-        new_doc.append(node_line)
 
-        styledoc = libxml2.parseFile(os.path.join(tools.config['root_path'],'addons/base/report/custom_new.xsl'))
-        style = libxslt.parseStylesheetDoc(styledoc)
-        doc = libxml2.parseDoc(new_doc.toxml())
-        rml_obj = style.applyStylesheet(doc, None)
-        rml = style.saveResultToString(rml_obj)
+        transform = etree.XSLT(
+            etree.parse(os.path.join(tools.config['root_path'],
+                                     'addons/base/report/custom_new.xsl')))
+        rml = etree.tostring(transform(new_doc))
+
         self.obj = render.rml(rml, self.title)
         self.obj.render()
         return True
diff --git a/bin/report/printscreen/ps_list.py b/bin/report/printscreen/ps_list.py
index 2d3ee002633..06951bfe869 100644
--- a/bin/report/printscreen/ps_list.py
+++ b/bin/report/printscreen/ps_list.py
@@ -24,8 +24,6 @@ import pooler
 import tools
 from lxml  import etree
 from report import render
-import libxml2
-import libxslt
 import locale
 
 import time, os
@@ -37,14 +35,9 @@ class report_printscreen_list(report_int):
 
     def _parse_node(self, root_node):
         result = []
-        for node in root_node.getchildren():
+        for node in root_node:
             if node.tag == 'field':
-                attrsa = node.attrib
-                attrs = {}
-                if not attrsa is None:
-                   for key,val in attrsa.items():
-                    attrs[key] = val
-                result.append(attrs['name'])
+                result.append(node.get('name'))
             else:
                 result.extend(self._parse_node(node))
         return result
@@ -90,30 +83,28 @@ class report_printscreen_list(report_int):
 
     def _create_table(self, uid, ids, fields, fields_order, results, context, title=''):
         pageSize=[297.0, 210.0]
-        new_doc = etree.Element("report")
-        config = etree.Element("config")
 
-        # build header
+        new_doc = etree.Element("report")
+        config = etree.SubElement(new_doc, 'config')
 
         def _append_node(name, text):
-            n = etree.Element(name)
+            n = etree.SubElement(config, name)
             n.text = text
-            config.append(n)
 
         #_append_node('date', time.strftime('%d/%m/%Y'))
         _append_node('date', time.strftime(str(locale.nl_langinfo(locale.D_FMT).replace('%y', '%Y'))))
         _append_node('PageSize', '%.2fmm,%.2fmm' % tuple(pageSize))
         _append_node('PageWidth', '%.2f' % (pageSize[0] * 2.8346,))
         _append_node('PageHeight', '%.2f' %(pageSize[1] * 2.8346,))
-
         _append_node('report-header', title)
+
         l = []
         t = 0
         rowcount=0;
         strmax = (pageSize[0]-40) * 2.8346
         temp = []
         count = len(fields_order)
-        for i in range(0,count):
+        for i in range(0, count):
             temp.append(0)
 
         ince = -1;
@@ -135,24 +126,20 @@ class report_printscreen_list(report_int):
                 l[pos] = strmax * s / t
 
         _append_node('tableSize', ','.join(map(str,l)) )
-        new_doc.append(config)
-        header=etree.Element("header")
-
 
+        header = etree.SubElement(new_doc, 'header')
         for f in fields_order:
-            field = etree.Element("field")
+            field = etree.SubElement(header, 'field')
             field.text = tools.ustr(fields[f]['string'] or '')
-            header.append(field)
 
-        new_doc.append(header)
-        lines = etree.Element("lines")
+        lines = etree.SubElement(new_doc, 'lines')
         tsum = []
         count = len(fields_order)
         for i in range(0,count):
             tsum.append(0)
             
         for line in results:
-            node_line = etree.Element("row")
+            node_line = etree.SubElement(lines, 'row')
             count = -1
             for f in fields_order:
                 float_flag = 0
@@ -194,28 +181,19 @@ class report_printscreen_list(report_int):
                     new_d1 = d1.strftime(format)
                     line[f] = new_d1
                     
-                col = etree.Element("col")
-                col.set('para','yes')
-                col.set('tree','no')
+                col = etree.SubElement(node_line, 'col', para='yes', tree='no')
                 if line[f] != None:
                     col.text = tools.ustr(line[f] or '')
                     if float_flag:
                        col.set('tree','float') 
                     if temp[count] == 1:
                         tsum[count] = float(tsum[count])  + float(line[f]);
-                        
-                        
                 else:
                      col.text = '/'
-                node_line.append(col)
-            lines.append(node_line)
-        node_line = etree.Element("row")
-        lines.append(node_line)
 
+        node_line = etree.SubElement(lines, 'row')
         for f in range(0,count+1):
-            col = etree.Element("col")
-            col.set('para','yes')
-            col.set('tree','no')
+            col = etree.SubElement(node_line, 'col', para='yes', tree='no')
             if tsum[f] != None:
                if tsum[f] >= 0.01 :
                    prec = '%.' +  str(tools.config['price_accuracy'])  + 'f'
@@ -230,16 +208,12 @@ class report_printscreen_list(report_int):
                 txt ='Total'
 
             col.text = tools.ustr(txt or '')
-            node_line.append(col)
 
-        lines.append(node_line)
+        transform = etree.XSLT(
+            etree.parse(os.path.join(tools.config['root_path'],
+                                     'addons/base/report/custom_new.xsl')))
+        rml = etree.tostring(transform(new_doc))
 
-        new_doc.append(lines)
-        styledoc = libxml2.parseFile(os.path.join(tools.config['root_path'],'addons/base/report/custom_new.xsl'))
-        style = libxslt.parseStylesheetDoc(styledoc)
-        doc = libxml2.parseDoc(etree.tostring(new_doc))
-        rml_obj = style.applyStylesheet(doc, None)
-        rml = style.saveResultToString(rml_obj)
         self.obj = render.rml(rml, title=self.title)
         self.obj.render()
         return True
diff --git a/bin/report/render/html2html/html2html.py b/bin/report/render/html2html/html2html.py
index 9acb25b5d28..dfd92a70b52 100644
--- a/bin/report/render/html2html/html2html.py
+++ b/bin/report/render/html2html/html2html.py
@@ -74,7 +74,7 @@ class html2html(object):
         return self._node
         
     def url_modify(self,root):
-        for n in root.getchildren():
+        for n in root:
             if (n.text.find('<a ')>=0 or n.text.find('&lt;a')>=0) and n.text.find('href')>=0 and n.text.find('style')<=0 :
                 node = (n.tag=='span' and n.getparent().tag=='u') and n.getparent().getparent() or ((n.tag=='span') and n.getparent()) or n
                 style = node.get('color') and "style='color:%s; text-decoration: none;'"%node.get('color') or ''
diff --git a/bin/report/render/rml2html/rml2html.py b/bin/report/render/rml2html/rml2html.py
index 9e419c652c1..381cb0481d5 100644
--- a/bin/report/render/rml2html/rml2html.py
+++ b/bin/report/render/rml2html/rml2html.py
@@ -103,12 +103,10 @@ class _flowable(object):
         process(node,new_node)
         if new_node.get('colWidths',False):
             sizes = map(lambda x: utils.unit_get(x), new_node.get('colWidths').split(','))
-            tr = etree.Element('tr')
+            tr = etree.SubElement(new_node, 'tr')
             for s in sizes:
-                td = etree.Element('td')
-                td.set("width", str(s))
-                tr.append(td)
-            new_node.append(tr)
+                etree.SubElement(tr, 'td', width=str(s))
+
         return etree.tostring(new_node)
 
     def _tag_para(self, node):
@@ -297,7 +295,7 @@ class _rml_template(object):
                 posx = int(utils.unit_get(tmpl.get('x1')))
                 frames[(posy,posx,tmpl.get('id'))] = _rml_tmpl_frame(posx, utils.unit_get(tmpl.get('width')))
             for tmpl in pt.findall('pageGraphics'):
-                for n in tmpl.getchildren():
+                for n in tmpl:
                         if n.tag == 'image':
                            self.data = rc + utils._process_text(self, n.text)
                         if n.tag in self._tags:
diff --git a/bin/report/render/rml2pdf/trml2pdf.py b/bin/report/render/rml2pdf/trml2pdf.py
index e180cc9dd9d..920d89a8479 100644
--- a/bin/report/render/rml2pdf/trml2pdf.py
+++ b/bin/report/render/rml2pdf/trml2pdf.py
@@ -87,7 +87,7 @@ class _rml_styles(object,):
 
     def _table_style_get(self, style_node):
         styles = []
-        for node in style_node.getchildren():
+        for node in style_node:
             start = utils.tuple_int_get(node, 'start', (0,0) )
             stop = utils.tuple_int_get(node, 'stop', (-1,-1) )
             if node.tag=='blockValign':
@@ -185,7 +185,7 @@ class _rml_doc(object):
 
     def _textual_image(self, node):
         rc = ''
-        for n in node.getchildren():
+        for n in node:
             rc +=( etree.tostring(n) or '') + n.tail
         return base64.decodestring(node.tostring())
 
@@ -776,7 +776,8 @@ class _rml_template(object):
                     frame.lastFrame = True
                 frames.append( frame )
             try :
-                gr = pt.findall('pageGraphics') or pt.getchildren()[1].findall('pageGraphics')
+                gr = pt.findall('pageGraphics')\
+                    or pt[1].findall('pageGraphics')
             except :
                 gr=''
             if len(gr):
diff --git a/bin/report/render/rml2pdf/utils.py b/bin/report/render/rml2pdf/utils.py
index 4d3f5ab0fb3..b1713443d93 100644
--- a/bin/report/render/rml2pdf/utils.py
+++ b/bin/report/render/rml2pdf/utils.py
@@ -55,7 +55,7 @@ def xml2str(s):
 
 def _child_get(node, self=None, tagname=None):
     for n in node:
-        if self and self.localcontext and n.get('rml_loop', False):
+        if self and self.localcontext and n.get('rml_loop'):
             oldctx = self.localcontext
 
             for ctx in eval(n.get('rml_loop'),{}, self.localcontext):
@@ -79,12 +79,12 @@ def _child_get(node, self=None, tagname=None):
                         yield n
             self.localcontext = oldctx
             continue
-        if self and self.localcontext and n.get('rml_except', False):
+        if self and self.localcontext and n.get('rml_except'):
             try:
                 eval(n.get('rml_except'), {}, self.localcontext)
             except:
                 continue
-        if self and self.localcontext and n.get('rml_tag', False):
+        if self and self.localcontext and n.get('rml_tag'):
             try:
                 (tag,attr) = eval(n.get('rml_tag'),{}, self.localcontext)
                 n2 = copy.deepcopy(n)
@@ -122,10 +122,7 @@ def _process_text(self, txt):
         return result
 
 def text_get(node):
-    rc = ''
-    for node in node.getchildren():
-            rc = rc + tools.ustr(node.text)
-    return rc
+    return ''.join([tools.ustr(n.text) for n in node])
 
 units = [
     (re.compile('^(-?[0-9\.]+)\s*in$'), reportlab.lib.units.inch),
@@ -155,8 +152,7 @@ def unit_get(size):
 def tuple_int_get(node, attr_name, default=None):
     if not node.get(attr_name):
         return default
-    res = [int(x) for x in node.get(attr_name).split(',')]
-    return res
+    return map(int, node.get(attr_name).split(','))
 
 def bool_get(value):
     return (str(value)=="1") or (value.lower()=='yes')
diff --git a/bin/report/report_sxw.py b/bin/report/report_sxw.py
index f1df81e60bc..a03f8b4ba26 100644
--- a/bin/report/report_sxw.py
+++ b/bin/report/report_sxw.py
@@ -302,7 +302,7 @@ class rml_parse(object):
             rml_head = rml_head.replace('<image','<!--image')
             rml_head = rml_head.replace('</image>','</image-->')
         head_dom = etree.XML(rml_head)
-        for tag in head_dom.getchildren():
+        for tag in head_dom:
             found = rml_dom.find('.//'+tag.tag)
             if found is not None and len(found):
                 if tag.get('position'):
@@ -466,13 +466,14 @@ class report_sxw(report_rml, preprocess.report):
         for pe in elements:
             if pe.get(rml_parser.localcontext['name_space']["meta"]+"name"):
                 if pe.get(rml_parser.localcontext['name_space']["meta"]+"name") == "Info 3":
-                    pe.getchildren()[0].text=data['id']
+                    pe[0].text=data['id']
                 if pe.get(rml_parser.localcontext['name_space']["meta"]+"name") == "Info 4":
-                    pe.getchildren()[0].text=data['model']
-        meta = etree.tostring(rml_dom_meta)
+                    pe[0].text=data['model']
+        meta = etree.tostring(rml_dom_meta, encoding='utf-8',
+                              xml_declaration=True)
 
         rml_dom =  etree.XML(rml)
-        body = rml_dom.getchildren()[-1]
+        body = rml_dom[-1]
         elements = []
         key1 = rml_parser.localcontext['name_space']["text"]+"p"
         key2 = rml_parser.localcontext['name_space']["text"]+"drop-down"
@@ -486,7 +487,7 @@ class report_sxw(report_rml, preprocess.report):
                     pp=de.getparent()
                     if de.text or de.tail:
                         pe.text = de.text or de.tail
-                    for cnd in de.getchildren():
+                    for cnd in de:
                         if cnd.text or cnd.tail:
                             if pe.text:
                                 pe.text +=  cnd.text or cnd.tail
@@ -512,12 +513,11 @@ class report_sxw(report_rml, preprocess.report):
 
         rml_dom = self.preprocess_rml(rml_dom,report_type)
         create_doc = self.generators[report_type]
-        odt = etree.tostring(create_doc(rml_dom, rml_parser.localcontext))
+        odt = etree.tostring(create_doc(rml_dom, rml_parser.localcontext),
+                             encoding='utf-8', xml_declaration=True)
         sxw_z = zipfile.ZipFile(sxw_io, mode='a')
-        sxw_z.writestr('content.xml', "<?xml version='1.0' encoding='UTF-8'?>" + \
-                odt)
-        sxw_z.writestr('meta.xml', "<?xml version='1.0' encoding='UTF-8'?>" + \
-                meta)
+        sxw_z.writestr('content.xml', odt)
+        sxw_z.writestr('meta.xml', meta)
 
         if report_xml.header:
             #Add corporate header/footer
@@ -532,9 +532,9 @@ class report_sxw(report_rml, preprocess.report):
             odt = create_doc(rml_dom,rml_parser.localcontext)
             if report_xml.header:
                 rml_parser._add_header(odt)
-            odt = etree.tostring(odt)
-            sxw_z.writestr('styles.xml',"<?xml version='1.0' encoding='UTF-8'?>" + \
-                    odt)
+            odt = etree.tostring(odt, encoding='utf-8',
+                                 xml_declaration=True)
+            sxw_z.writestr('styles.xml', odt)
         sxw_z.close()
         final_op = sxw_io.getvalue()
         sxw_io.close()
diff --git a/bin/tools/config.py b/bin/tools/config.py
index 2dd6b1131bf..4cdee8736c2 100644
--- a/bin/tools/config.py
+++ b/bin/tools/config.py
@@ -211,7 +211,8 @@ class configmanager(object):
         else:
             rcfilepath = os.path.expanduser('~/.openerp_serverrc')
 
-        self.rcfile = fname or opt.config or os.environ.get('OPENERP_SERVER') or rcfilepath
+        self.rcfile = os.path.abspath(
+            fname or opt.config or os.environ.get('OPENERP_SERVER') or rcfilepath)
         self.load()
 
 
diff --git a/bin/tools/convert.py b/bin/tools/convert.py
index 495c71ef05a..61c219a5edf 100644
--- a/bin/tools/convert.py
+++ b/bin/tools/convert.py
@@ -35,12 +35,6 @@ from config import config
 import logging
 
 import sys
-try:
-    from lxml import etree
-except:
-    sys.stderr.write("ERROR: pythonic binding for the libxml2 and libxslt libraries is missing\n")
-    sys.stderr.write("ERROR: Try to install python-lxml package\n")
-    sys.exit(2)
 import pickle
 
 
@@ -63,17 +57,16 @@ def _eval_xml(self,node, pool, cr, uid, idref, context=None):
     if context is None:
         context = {}
     if node.tag in ('field','value'):
-            t = node.get('type','') or 'char'
-            f_model = node.get("model", '').encode('ascii')
-            if len(node.get('search','')):
+            t = node.get('type','char')
+            f_model = node.get('model', '').encode('ascii')
+            if node.get('search'):
                 f_search = node.get("search",'').encode('utf-8')
-                f_use = node.get("use",'').encode('ascii')
+                f_use = node.get("use",'id').encode('ascii')
                 f_name = node.get("name",'').encode('utf-8')
-                if len(f_use)==0:
-                    f_use = "id"
+
                 q = eval(f_search, idref)
                 ids = pool.get(f_model).search(cr, uid, q)
-                if f_use<>'id':
+                if f_use != 'id':
                     ids = map(lambda x: x[f_use], pool.get(f_model).read(cr, uid, ids, [f_use]))
                 _cols = pool.get(f_model)._columns
                 if (f_name in _cols) and _cols[f_name]._type=='many2many':
@@ -85,7 +78,7 @@ def _eval_xml(self,node, pool, cr, uid, idref, context=None):
                         f_val = f_val[0]
                 return f_val
             a_eval = node.get('eval','')
-            if len(a_eval):
+            if a_eval:
                 import time
                 from mx import DateTime
                 idref2 = idref.copy()
@@ -118,52 +111,53 @@ def _eval_xml(self,node, pool, cr, uid, idref, context=None):
                         if not id in idref:
                             idref[id]=self.id_get(cr, False, id)
                     return s % idref
-                txt = '<?xml version="1.0"?>\n'+_process("".join([etree.tostring(i).encode("utf8") for i in node.getchildren()]), idref)
-                return txt
+                return '<?xml version="1.0"?>\n'\
+                    +_process("".join([etree.tostring(n, encoding='utf-8')
+                                       for n in node]),
+                              idref)
             if t in ('char', 'int', 'float'):
                 d = node.text
                 if t == 'int':
                     d = d.strip()
-                    if d=='None':
+                    if d == 'None':
                         return None
                     else:
-                        d=int(d.strip())
-                elif t=='float':
-                    d=float(d.strip())
+                        return int(d.strip())
+                elif t == 'float':
+                    return float(d.strip())
                 return d
             elif t in ('list','tuple'):
                 res=[]
-                for n in [i for i in node.getchildren() if (i.tag=='value')]:
+                for n in node.findall('./value'):
                     res.append(_eval_xml(self,n,pool,cr,uid,idref))
                 if t=='tuple':
                     return tuple(res)
                 return res
     elif node.tag == "getitem":
-        for n in [i for i in node.getchildren()]:
+        for n in node:
             res=_eval_xml(self,n,pool,cr,uid,idref)
         if not res:
             raise LookupError
-        elif node.get('type','') in ("int", "list"):
-            return res[int(node.get('index',''))]
+        elif node.get('type') in ("int", "list"):
+            return res[int(node.get('index'))]
         else:
             return res[node.get('index','').encode("utf8")]
     elif node.tag == "function":
         args = []
         a_eval = node.get('eval','')
-        if len(a_eval):
+        if a_eval:
             idref['ref'] = lambda x: self.id_get(cr, False, x)
             args = eval(a_eval, idref)
-        for n in [i for i in node.getchildren()]:
+        for n in node:
             return_val = _eval_xml(self,n, pool, cr, uid, idref, context)
-            if return_val != None:
+            if return_val is not None:
                 args.append(return_val)
         model = pool.get(node.get('model',''))
         method = node.get('name','')
         res = getattr(model, method)(cr, uid, *args)
         return res
     elif node.tag == "test":
-        d = node.text
-        return d
+        return node.text
 
 escape_re = re.compile(r'(?<!\\)/')
 def escape(x):
@@ -220,14 +214,14 @@ class xml_import(object):
             context = {}
 
         node_context = node.get("context",'').encode('utf8')
-        if len(node_context):
+        if node_context:
             context.update(eval(node_context, eval_dict))
 
         return context
 
     def get_uid(self, cr, uid, data_node, node):
         node_uid = node.get('uid','') or (len(data_node) and data_node.get('uid',''))
-        if len(node_uid):
+        if node_uid:
             return self.id_get(cr, None, node_uid)
         return uid
 
@@ -250,18 +244,17 @@ form: module.record_id""" % (xml_id,)
         d_search = rec.get("search",'')
         d_id = rec.get("id",'')
         ids = []
-        if len(d_search):
+        if d_search:
             ids = self.pool.get(d_model).search(cr,self.uid,eval(d_search))
-        if len(d_id):
+        if d_id:
             try:
                 ids.append(self.id_get(cr, d_model, d_id))
             except:
                 # d_id cannot be found. doesn't matter in this case
                 pass
-        if len(ids):
+        if ids:
             self.pool.get(d_model).unlink(cr, self.uid, ids)
             self.pool.get('ir.model.data')._unlink(cr, self.uid, d_model, ids, direct=True)
-        return False
 
     def _tag_report(self, cr, rec, data_node=None):
         res = {}
@@ -270,20 +263,19 @@ form: module.record_id""" % (xml_id,)
             assert res[dest], "Attribute %s of report is empty !" % (f,)
         for field,dest in (('rml','report_rml'),('xml','report_xml'),('xsl','report_xsl'),('attachment','attachment'),('attachment_use','attachment_use')):
             if rec.get(field):
-                res[dest] = rec.get(field,'').encode('utf8')
+                res[dest] = rec.get(field).encode('utf8')
         if rec.get('auto'):
-            res['auto'] = eval(rec.get('auto',''))
+            res['auto'] = eval(rec.get('auto'))
         if rec.get('sxw'):
-            sxw_content = misc.file_open(rec.get('sxw','')).read()
+            sxw_content = misc.file_open(rec.get('sxw')).read()
             res['report_sxw_content'] = sxw_content
         if rec.get('header'):
-            res['header'] = eval(rec.get('header',''))
+            res['header'] = eval(rec.get('header'))
         if rec.get('report_type'):
-            res['report_type'] = rec.get('report_type','')
-
-        res['multi'] = rec.get('multi','') and eval(rec.get('multi',''))
-        xml_id = rec.get('id','').encode('utf8')               
+            res['report_type'] = rec.get('report_type')
 
+        res['multi'] = rec.get('multi') and eval(rec.get('multi'))
+        xml_id = rec.get('id','').encode('utf8')
         self._test_xml_id(xml_id)
 
         if rec.get('groups'):
@@ -303,10 +295,10 @@ form: module.record_id""" % (xml_id,)
         self.idref[xml_id] = int(id)
 
         if not rec.get('menu') or eval(rec.get('menu','')):
-            keyword = str(rec.get('keyword','') or 'client_print_multi')
+            keyword = str(rec.get('keyword', 'client_print_multi'))
             keys = [('action',keyword),('res_model',res['model'])]
             value = 'ir.actions.report.xml,'+str(id)
-            replace = rec.get("replace",'') or True
+            replace = rec.get('replace', True)
             self.pool.get('ir.model.data').ir_set(cr, self.uid, 'action', keyword, res['name'], [res['model']], value, replace=replace, isobject=True, xml_id=xml_id)
         return False
 
@@ -316,7 +308,7 @@ form: module.record_id""" % (xml_id,)
         context = self.get_context(data_node, rec, {'ref': _ref(self, cr)})
         uid = self.get_uid(cr, self.uid, data_node, rec)
         _eval_xml(self,rec, self.pool, cr, uid, self.idref, context=context)
-        return False
+        return
 
     def _tag_wizard(self, cr, rec, data_node=None):
         string = rec.get("string",'').encode('utf8')
@@ -349,7 +341,6 @@ form: module.record_id""" % (xml_id,)
             value = 'ir.actions.wizard,'+str(id)
             replace = rec.get("replace",'') or True
             self.pool.get('ir.model.data').ir_set(cr, self.uid, 'action', keyword, string, [model], value, replace=replace, isobject=True, xml_id=xml_id)
-        return False
 
     def _tag_url(self, cr, rec, data_node=None):
         url = rec.get("string",'').encode('utf8')
@@ -369,7 +360,6 @@ form: module.record_id""" % (xml_id,)
             value = 'ir.actions.url,'+str(id)
             replace = rec.get("replace",'') or True
             self.pool.get('ir.model.data').ir_set(cr, self.uid, 'action', keyword, url, ["ir.actions.url"], value, replace=replace, isobject=True, xml_id=xml_id)
-        return False
 
     def _tag_act_window(self, cr, rec, data_node=None):
         name = rec.get('name','').encode('utf-8')
@@ -438,38 +428,37 @@ form: module.record_id""" % (xml_id,)
             replace = rec.get('replace','') or True
             self.pool.get('ir.model.data').ir_set(cr, self.uid, 'action', keyword, xml_id, [src_model], value, replace=replace, isobject=True, xml_id=xml_id)
         # TODO add remove ir.model.data
-        return False
 
     def _tag_ir_set(self, cr, rec, data_node=None):
-        if not self.mode=='init':
-            return False
+        if self.mode != 'init':
+            return
         res = {}
-        for field in [i for i in rec.getchildren() if (i.tag=="field")]:
+        for field in rec.findall('./field'):
             f_name = field.get("name",'').encode('utf-8')
             f_val = _eval_xml(self,field,self.pool, cr, self.uid, self.idref)
             res[f_name] = f_val
         self.pool.get('ir.model.data').ir_set(cr, self.uid, res['key'], res['key2'], res['name'], res['models'], res['value'], replace=res.get('replace',True), isobject=res.get('isobject', False), meta=res.get('meta',None))
-        return False
 
     def _tag_workflow(self, cr, rec, data_node=None):
         if self.isnoupdate(data_node) and self.mode != 'init':
             return
         model = str(rec.get('model',''))
         w_ref = rec.get('ref','')
-        if len(w_ref):
+        if w_ref:
             id = self.id_get(cr, model, w_ref)
         else:
-            assert rec.getchildren(), 'You must define a child node if you dont give a ref'
-            element_childs = [i for i in rec.getchildren()]
-            assert len(element_childs) == 1, 'Only one child node is accepted (%d given)' % len(rec.getchildren())
-            id = _eval_xml(self, element_childs[0], self.pool, cr, self.uid, self.idref)
+            number_children = len(rec)
+            assert number_children > 0,\
+                'You must define a child node if you dont give a ref'
+            assert number_children == 1,\
+                'Only one child node is accepted (%d given)' % number_children
+            id = _eval_xml(self, rec[0], self.pool, cr, self.uid, self.idref)
 
         uid = self.get_uid(cr, self.uid, data_node, rec)
         wf_service = netsvc.LocalService("workflow")
         wf_service.trg_validate(uid, model,
             id,
             str(rec.get('action','')), cr)
-        return False
 
     #
     # Support two types of notation:
@@ -509,7 +498,7 @@ form: module.record_id""" % (xml_id,)
             menu_parent_id = self.id_get(cr, 'ir.ui.menu', rec.get('parent',''))
             values = {'parent_id': menu_parent_id}
             if rec.get('name'):
-                values['name'] = rec.get('name','')
+                values['name'] = rec.get('name')
             try:
                 res = [ self.id_get(cr, 'ir.ui.menu', rec.get('id','')) ]
             except:
@@ -557,9 +546,10 @@ form: module.record_id""" % (xml_id,)
                 if (not values.get('name', False)) and resw:
                     values['name'] = resw[0]
         if rec.get('sequence'):
-            values['sequence'] = int(rec.get('sequence',''))
+            values['sequence'] = int(rec.get('sequence'))
         if rec.get('icon'):
-            values['icon'] = str(rec.get('icon',''))
+            values['icon'] = str(rec.get('icon'))
+
         if rec.get('groups'):
             g_names = rec.get('groups','').split(',')
             groups_value = []
@@ -581,7 +571,7 @@ form: module.record_id""" % (xml_id,)
             self.idref[rec_id] = int(pid)
 
         if rec.get('action') and pid:
-            a_action = rec.get('action','').encode('utf8')
+            a_action = rec.get('action').encode('utf8')
             a_type = rec.get('type','').encode('utf8') or 'act_window'
             a_id = self.id_get(cr, 'ir.actions.%s' % a_type, a_action)
             action = "ir.actions.%s,%d" % (a_type, a_id)
@@ -601,7 +591,7 @@ form: module.record_id""" % (xml_id,)
         rec_id = rec.get("id",'').encode('ascii')
         self._test_xml_id(rec_id)
         rec_src = rec.get("search",'').encode('utf8')
-        rec_src_count = rec.get("count",'')
+        rec_src_count = rec.get("count")
 
         severity = rec.get("severity",'').encode('ascii') or netsvc.LOG_ERROR
         rec_string = rec.get("string",'').encode('utf8') or 'unknown'
@@ -610,12 +600,12 @@ form: module.record_id""" % (xml_id,)
         eval_dict = {'ref': _ref(self, cr)}
         context = self.get_context(data_node, rec, eval_dict)
         uid = self.get_uid(cr, self.uid, data_node, rec)
-        if len(rec_id):
+        if rec_id:
             ids = [self.id_get(cr, rec_model, rec_id)]
-        elif len(rec_src):
+        elif rec_src:
             q = eval(rec_src, eval_dict)
             ids = self.pool.get(rec_model).search(cr, uid, q, context=context)
-            if len(rec_src_count):
+            if rec_src_count:
                 count = int(rec_src_count)
                 if len(ids) != count:
                     self.assert_report.record_assertion(False, severity)
@@ -631,8 +621,8 @@ form: module.record_id""" % (xml_id,)
                         raise Exception('Severe assertion failure')
                     return
 
-        assert ids != None, 'You must give either an id or a search criteria'
-
+        assert ids is not None,\
+            'You must give either an id or a search criteria'
         ref = _ref(self, cr)
         for id in ids:
             brrec =  model.browse(cr, uid, id, context)
@@ -645,7 +635,7 @@ form: module.record_id""" % (xml_id,)
             globals['floatEqual'] = self._assert_equals
             globals['ref'] = ref
             globals['_ref'] = ref
-            for test in [i for i in rec.getchildren() if (i.tag=="test")]:
+            for test in rec.findall('./test'):
                 f_expr = test.get("expr",'').encode('utf-8')
                 expected_value = _eval_xml(self, test, self.pool, cr, uid, self.idref, context=context) or True
                 expression_value = eval(f_expr, globals)
@@ -700,7 +690,7 @@ form: module.record_id""" % (xml_id,)
                 # otherwise it is skipped
                 return None
         res = {}
-        for field in [i for i in rec.getchildren() if (i.tag == "field")]:
+        for field in rec.findall('./field'):
 #TODO: most of this code is duplicated above (in _eval_xml)...
             f_name = field.get("name",'').encode('utf-8')
             f_ref = field.get("ref",'').encode('ascii')
@@ -711,7 +701,7 @@ form: module.record_id""" % (xml_id,)
             f_use = field.get("use",'').encode('ascii') or 'id'
             f_val = False
 
-            if len(f_search):
+            if f_search:
                 q = eval(f_search, self.idref)
                 field = []
                 assert f_model, 'Define an attribute model="..." in your .XML file !'
@@ -727,7 +717,7 @@ form: module.record_id""" % (xml_id,)
                     # otherwise (we are probably in a many2one field),
                     # take the first element of the search
                     f_val = s[0][f_use]
-            elif len(f_ref):
+            elif f_ref:
                 if f_ref=="null":
                     f_val = False
                 else:
@@ -755,9 +745,7 @@ form: module.record_id""" % (xml_id,)
         result = self.pool.get('ir.model.data')._get_id(cr, self.uid, mod, id_str)
         return int(self.pool.get('ir.model.data').read(cr, self.uid, [result], ['res_id'])[0]['res_id'])
 
-    def parse(self, xmlstr):
-        de = etree.XML(xmlstr)
-
+    def parse(self, de):
         if not de.tag in ['terp', 'openerp']:
             self.logger.notifyChannel("init", netsvc.LOG_ERROR, "Mismatch xml format" )
             raise Exception( "Mismatch xml format: only terp or openerp as root tag" )
@@ -765,8 +753,8 @@ form: module.record_id""" % (xml_id,)
         if de.tag == 'terp':
             self.logger.notifyChannel("init", netsvc.LOG_WARNING, "The tag <terp/> is deprecated, use <openerp/>")
 
-        for n in [i for i in de.getchildren() if (i.tag=="data")]:
-            for rec in n.getchildren():
+        for n in de.findall('./data'):
+            for rec in n:
                     if rec.tag in self._tags:
                         try:
                             self._tags[rec.tag](self.cr, rec, n)
@@ -861,12 +849,9 @@ def convert_csv_import(cr, module, fname, csvcontent, idref=None, mode='init',
 # xml import/export
 #
 def convert_xml_import(cr, module, xmlfile, idref=None, mode='init', noupdate=False, report=None):
-    xmlstr = xmlfile.read()
-    xmlfile.seek(0)
-    relaxng_doc = etree.parse(file(os.path.join( config['root_path'], 'import_xml.rng' )))
-    relaxng = etree.RelaxNG(relaxng_doc)
-
     doc = etree.parse(xmlfile)
+    relaxng = etree.RelaxNG(
+        etree.parse(os.path.join(config['root_path'],'import_xml.rng' )))
     try:
         relaxng.assert_(doc)
     except Exception, e:
@@ -878,8 +863,7 @@ def convert_xml_import(cr, module, xmlfile, idref=None, mode='init', noupdate=Fa
     if idref is None:
         idref={}
     obj = xml_import(cr, module, idref, mode, report=report, noupdate=noupdate)
-    obj.parse(xmlstr)
-    del obj
+    obj.parse(doc.getroot())
     return True
 
 def convert_xml_export(res):
diff --git a/bin/tools/translate.py b/bin/tools/translate.py
index 83e90325e70..fdeffaa09f0 100644
--- a/bin/tools/translate.py
+++ b/bin/tools/translate.py
@@ -375,9 +375,9 @@ def trans_export(lang, modules, buffer, format, dbname=None):
 
 def trans_parse_xsl(de):
     res = []
-    for n in [i for i in de.getchildren()]:
+    for n in de:
         if n.get("t"):
-            for m in [j for j in n.getchildren() if j.text]:
+            for m in [j for j in n if j.text]:
                 l = m.text.strip().replace('\n',' ')
                 if len(l):
                     res.append(l.encode("utf8"))
@@ -386,8 +386,8 @@ def trans_parse_xsl(de):
 
 def trans_parse_rml(de):
     res = []
-    for n in [i for i in de.getchildren()]:
-        for m in [j for j in n.getchildren() if j.text]:
+    for n in de:
+        for m in [j for j in n if j.text]:
             string_list = [s.replace('\n', ' ').strip() for s in re.split('\[\[.+?\]\]', m.text)]
             for s in string_list:
                 if s:
@@ -398,14 +398,10 @@ def trans_parse_rml(de):
 def trans_parse_view(de):
     res = []
     if de.get("string"):
-        s = de.get('string')
-        if s:
-            res.append(s.encode("utf8"))
+        res.append(de.get('string').encode("utf8"))
     if de.get("sum"):
-        s = de.get('sum')
-        if s:
-            res.append(s.encode("utf8"))
-    for n in [i for i in de.getchildren()]:
+        res.append(de.get('sum').encode("utf8"))
+    for n in de:
         res.extend(trans_parse_view(n))
     return res
 
diff --git a/bin/wizard/__init__.py b/bin/wizard/__init__.py
index 456fa6efb32..72811589300 100644
--- a/bin/wizard/__init__.py
+++ b/bin/wizard/__init__.py
@@ -53,7 +53,7 @@ class interface(netsvc.Service):
             trans = translate(cr, self.wiz_name+','+state, 'wizard_view', lang, node.get('string').encode('utf8'))
             if trans:
                 node.set('string', trans)
-        for n in node.getchildren():
+        for n in node:
             self.translate_view(cr, n, state, lang)
 
     def execute_cr(self, cr, uid, data, state='init', context=None):
diff --git a/setup.py b/setup.py
index 1c088b3f8f2..8c96916ac71 100755
--- a/setup.py
+++ b/setup.py
@@ -54,8 +54,6 @@ py_short_version = '%s.%s' % sys.version_info[:2]
 required_modules = [
     ('psycopg2', 'PostgreSQL module'),
     ('xml', 'XML Tools for python'),
-    ('libxml2', 'libxml2 python bindings'),
-    ('libxslt', 'libxslt python bindings'),
     ('reportlab', 'reportlab module'),
     ('pychart', 'pychart module'),
     ('pydot', 'pydot module'),