XML Parsing problem using DOM Parser: HELP NEEDED

[burn_hall]

Hi,
I have a problem and can't figure it out and need your help, please 
look at the following code and the output also a xml file snippet is 
down there too.
Looking at the output I don't know why it's not according to the 
code.

Following code is pretty much clear: When method starts execution 
<Pat> Node is passed it has childNodes 
Inside for-loop 
  if x.localName == 'id':  check for validTine and calls the same 
method again,
now executes elif x.localName == 'validTime':  check for the 
appropriate childNode and calls the method again, 
now inside if temp_node.localName == 'low': calls the method but 
instead of just executing elif x.localName == 'low' and 
x.parentNode.localName == 'validTime':
and printing only 
   print " In low" 
  it prints all the rest too i.e.
    print "In high"
    print "In high1"
    print "In high2"
    print "In high3"
    print "In high4"
    print "In high5"

   then again in the for-loop of validTime this time executes elif 
temp_node.localName == 'high': but instead of 
   just executing elif x.localName == 'high' and 
x.parentNode.localName == 'validTime':
   and printing only
    print "In high"
    it prints all the rest too i.e.
    print "In low"
    print "In high1"
    print "In high2"
    print "In high3"
    print "In high4"
    print "In high5"

   and it continues for the rest.

   Why it when executing 
   if temp_node.localName == 'low':                                
       print " **** low"
       self.iterate(x)
   only executes
   elif x.localName == 'low' and x.parentNode.localName 
== 'validTime':
       print " In low"

  and so on. Why it iterates through all the rest elements too and 
when the condition for one is being checked.
  Is it the normal way that xml parsing is handled in python. If so 
what's the best way 
  to handle this situation using DOM(Parser). As I need to parse the 
xml-file it's pretty big and each Node 
  can have nested childNodes and so forth as the example shows. But 
anytime parsing the Node doesn't stops and jumps to the right 
condition
  as shown in the following sample: Any help is appreciated

    
    def iterate(self,node):
        print '0 ===  %s' % node.localName
        
    for x in node.childNodes:
            if x.nodeType == Node.TEXT_NODE:
                pass
            else:
                print "1 **** %s" % x.localName                
                
        if x.localName == 'id':
                    print " **** id"
            for temp_node in x.childNodes:
                if temp_node.localName == 'validTime': 
                    self.iterate(x)
                
                elif x.localName == 'validTime':                    
            for temp_node in x.childNodes:
                if temp_node.localName 
== 'low':                                
                    print " **** low"
                self.iterate(x)
            elif temp_node.localName 
== 'high':                               
                print " **** low"
                self.iterate(x)
            elif temp_node.localName 
== 'high1':                               
                print " **** high1"
                self.iterate(x)
            elif temp_node.localName 
== 'high2':                               
                print " **** high2"
                self.iterate(x)
            elif temp_node.localName 
== 'high3':                               
                print " **** high3"
                self.iterate(x)
            elif temp_node.localName 
== 'high4':                               
                print " **** high4"
                self.iterate(x)
            elif temp_node.localName 
== 'high5':                               
                print " **** high5"
                self.iterate(x)
            else:
                pass
                       
                elif x.localName == 'low' and x.parentNode.localName 
== 'validTime':
             print " In low"
        elif x.localName == 'high' and x.parentNode.localName 
== 'validTime':                   
                    print "In high"
                elif x.localName == 'high1' and 
x.parentNode.localName == 'validTime':
                    print "In high1"
                elif x.localName == 'high2' and 
x.parentNode.localName == 'validTime':
                    print "In high2"
                elif x.localName == 'high3' and 
x.parentNode.localName == 'validTime':
                    print "In high3"
                elif x.localName == 'high4' and 
x.parentNode.localName == 'validTime':
                    print "In high4"
                elif x.localName == 'high5' and 
x.parentNode.localName == 'validTime':
                    print "In high5"


***********  Following is the snippet of the .xml file 
***************
<Pat>
    <id>
        <validTime>
            <low val="l"/>
            <high val="12"/>
            <high1 val="123"/>
            <high2 val="1234"/>
            <high3 val="12345"/>
            <high4 val="123456"/>
            <high5 val="1234567"/>
        </validTime>
    </id>
    <Person/>   
    <Organ>
        <id/>
    </Organ>
</Pat>

************* Following is the output from execution of the method 
************
0 ===  Pat
1 **** id
0 ===  id
1 **** validTime
 **** low
0 ===  validTime
1 **** low
 In low
1 **** high
In high
1 **** high1
In high1
1 **** high2
In high2
1 **** high3
In high3
1 **** high4
In high4
1 **** high5
In high5
 **** high
0 ===  validTime
1 **** low
 In low
1 **** high
In high
1 **** high1
In high1
1 **** high2
In high2
1 **** high3
In high3
1 **** high4
In high4
1 **** high5
In high5
 **** high1
0 ===  validTime
1 **** low
 In low
1 **** high
In high
1 **** high1
In high1
1 **** high2
In high2
1 **** high3
In high3
1 **** high4
In high4
1 **** high5
In high5
 **** high2
0 ===  validTime
1 **** low
 In low
1 **** high
In high
1 **** high1
In high1
1 **** high2
In high2
1 **** high3
In high3
1 **** high4
In high4
1 **** high5
In high5
 **** high3
0 ===  validTime
1 **** low
 In low
1 **** high
In high
1 **** high1
In high1
1 **** high2
In high2
1 **** high3
In high3
1 **** high4
In high4
1 **** high5
In high5
 **** high4
0 ===  validTime
1 **** low
 In low
1 **** high
In high
1 **** high1
In high1
1 **** high2
In high2
1 **** high3
In high3
1 **** high4
In high4
1 **** high5
In high5
 **** high5
0 ===  validTime
1 **** low
 In low
1 **** high
In high
1 **** high1
In high1
1 **** high2
In high2
1 **** high3
In high3
1 **** high4
In high4
1 **** high5
In high5
1 **** Person
1 **** Organ