import pprint
import xml.dom.minidom
from xml.dom.minidom import Node
doc = xml.dom.minidom.parse("books.xml")
mapping = {}
for node in doc.getElementsByTagName("book"):
isbn = node.getAttribute("isbn")
L = node.getElementsByTagName("title")
for node2 in L:
title = ""
for node3 in node2.childNodes:
if node3.nodeType == Node.TEXT_NODE:
title += node3.data
mapping[isbn] = title
pprint.pprint(mapping)