how to read data from xml file

[Raj]

It still give error,
Below is my code:

[python][python]import xml.etree.cElementTree as ET
tree = ET.ElementTree('input.xml')
root = tree.getroot()
for books in root:
    if (books.tag=='book'):
        print books.get('id') % here it says invalid syntax
        for attr in books:
            if (attr.tag=='author'):
                print (attr.text)

[/python][/python]