# -*- coding: UTF-8 -*-
from lxml import etree
from StringIO import StringIO

if __name__ == "__main__":
    document="""
     <doc type="Ficha Visado" id="2">
         <attribute name="Rut Afiliado" type="string">1-3</attribute>
         <attribute name="Fecha Escaneo" type="date">2006-03-13 08:44:52</attribute>
         <attribute name="Suc Promotor" type="string">SANTIAGO</attribute>
         <attribute name="Apellido Paterno" type="string">PUENTE</attribute>
         <attribute name="Fecha Visacion" type="string">13/03/2006</attribute>
         <attribute name="Nombres Afiliado" type="string">Robertin</attribute>
         <attribute name="Apellido Materno" type="string">MANZANO</attribute>
         <doc type="DPS" id="1">
             <attribute name="Fecha Escaneo" type="date">2006-03-10 15:52:29</attribute>
             <link href="1-0.img" rel="media"/>
             <link href="1-1.img" rel="media"/>
         </doc>
     </doc>"""
    j=0
    while 1:
        print j
        j+=1
        tree = etree.fromstring(document)
        images_url = tree.xpath('//link[@rel="media"][@href]')
        image_url_name=images_url[0].attrib['href']