在python中为regedit生成XML文件

Question

如果我想在python中创建XML文件以显示软件名称和版本，我该怎么办？

   for i in range (50):

        try:
            subkey=EnumKey(akey,i)
            asubkey = OpenKey(akey, subkey)
            #print subkey

            val=QueryValueEx(asubkey,"DisplayName")
            var=QueryValueEx(asubkey,"DisplayVersion")

            #print val
            #print var

            if val != '' and var != '':


                the_doc = ROOT(
                    DOC(
                        Name(val, DisplayName='Name'),
                        Version(var, DisplayVersion='Version')
                        )
                    )


                f.write(lxml.etree.tostring(the_doc, pretty_print=True, xml_declaration=False))
            else:
                print "Registry empty"
        except:
            print " "

    f.close()
except:
    print "File not available"