python xml parser with ElementTree amazon api

Question

I need some help to understand the ElementTree in python for iterate this xml string :

b'54e05f2a-e792-11e5-8694-85b3fa7a9fcf0.005945883True28444340312844434031Categorie12892859031Donna2892862031Uomo2892857031Bambine e ragazze2892858031Bambini e ragazzi1739205031Prima infanzia2892860031Abbigliamento specifico e altre marche2844433031Abbigliamento'

i need in output the children browsenodeid and the name :

children : 2892859031
name : Donna
children : 2892862031
name : Uomo
children : 2892857031
name : Bambine e ragazze
...

someone can help me to write a little script in python for parse this xml ?

zezollo · Accepted Answer

If you still want to do this with python ElementTree, this can basically print the informations you're looking for. Works with recursion.

#!/usr/bin/env python3

import xml.etree.ElementTree as ET

root=ET.fromstring(b'54e05f2a-e792-11e5-8694-85b3fa7a9fcf0.005945883True28444340312844434031Categorie12892859031Donna2892862031Uomo2892857031Bambine e ragazze2892858031Bambini e ragazzi1739205031Prima infanzia2892860031Abbigliamento specifico e altre marche2844433031Abbigliamento')

# This AMAZON_STR is a kind of "header". It comes from xmls attribute of BrowseNodeLookupResponse (could be extracted from it, in case it changes in the future)
AMAZON_STR="{http://webservices.amazon.com/AWSECommerceService/2011-08-01}"

# Recursive function that deals with a node
def get_data_from(xml_node):
    # Loop over the children of current node
    for child in xml_node:
        # To avoid the "Category" Node, we only check the ones who have exactly 2 children
        if len(child) == 2:
            # We only look into the content of BrowseNode nodes
            if child.tag == AMAZON_STR + "BrowseNode":
                # Looping over the children of a BrowseNode node,
                # we simply print the contents (.text)
                for c in child:
                    if c.tag == AMAZON_STR + "BrowseNodeId":
                        print("children : " + c.text)
                    if c.tag == AMAZON_STR + "Name":
                        print("name : " + c.text)

        get_data_from(child)

# Finally call the function on the top node (root)
get_data_from(root)

Output:

$ ./test_script
children : 2892859031
name : Donna
children : 2892862031
name : Uomo
children : 2892857031
name : Bambine e ragazze
children : 2892858031
name : Bambini e ragazzi
children : 1739205031
name : Prima infanzia
children : 2892860031
name : Abbigliamento specifico e altre marche
children : 2844433031
name : Abbigliamento

Appendix: The content of your xml string, once indented, is easier to understand:



    
        
            
        
        54e05f2a-e792-11e5-8694-85b3fa7a9fcf
        
            
            
            
            
            
            
            
            
        
        0.005945883
    
    
        
            True
            
                2844434031
            
        
        
            2844434031
            Categorie
            1
            
                
                    2892859031
                    Donna
                
                
                    2892862031
                    Uomo
                
                
                    2892857031
                    Bambine e ragazze
                
                
                    2892858031
                    Bambini e ragazzi
                
                
                    1739205031
                    Prima infanzia
                
                
                    2892860031
                    Abbigliamento specifico e altre marche
                
            
            
                
                    2844433031
                    Abbigliamento

python xml parser with ElementTree amazon api

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