Example 1
import xml.dom.minidom as dom
example_lib = ['<dict>',
  '<key>Track ID</key><integer>35</integer>',
  '<key>Name</key><string>Landslide</string>',
  '<key>Artist</key><string>Fleetwood Mac</string>',
  '<key>Album</key><string>The Dance</string>',
  '<key>Genre</key><string>Rock</string>',
  '<key>Kind</key><string>Protected AAC audio file</string>',
  '<key>Size</key><integer>4285488</integer>',
  '<key>Total Time</key><integer>268283</integer>',
  '<key>Disc Number</key><integer>1</integer>',
  '<key>Disc Count</key><integer>1</integer>',
  '<key>Track Number</key><integer>9</integer>',
  '<key>Track Count</key><integer>17</integer>',
  '<key>Year</key><integer>1997</integer>',
  '<key>Bit Rate</key><integer>128</integer>',
  '<key>Sample Rate</key><integer>44100</integer>',
'</dict>']
f = open('/tmp/library.xml','w')
for line in example_lib:
    f.write(line)
f.close()
tree = dom.parse('/tmp/library.xml')

for i,x in enumerate(tree.getElementsByTagName("key")):
    for y in x.childNodes:
        print y.data;

Example 2

import plistlib
dictionary = plistlib.readPlist("/tmp/library.xml")
print dictionary