读取xml文件报错

>>> from xml.dom import minidom
>>> doc = minidom.parse("user.xml")
请问这么写有什么问题？
报错：
Traceback (most recent call last):
File "<pyshell#3>", line 1, in <module>
doc = minidom.parse("user.xml")
File "C:\Python26\lib\xml\dom\minidom.py", line 1918, in parse
return expatbuilder.parse(file)
File "C:\Python26\lib\xml\dom\expatbuilder.py", line 924, in parse
result = builder.parseFile(fp)
File "C:\Python26\lib\xml\dom\expatbuilder.py", line 207, in parseFile
parser.Parse(buffer, 0)
ExpatError: not well-formed (invalid token): line 7, column 13