xml.parsers.expat.ExpatError: not well-formed (invalid token)

今天在解析xml文件的时候出现了下面的问题：

 File "make_train_data.py", line 40, in <module>
    pair_list = parse_train_data("/media/data/biendata/baifendian_data/train_set.xml")
  File "make_train_data.py", line 11, in parse_train_data
    doc = parse(xml_data)
  File "/home/eric/anaconda3/lib/python3.6/xml/dom/minidom.py", line 1958, in parse
    return expatbuilder.parse(file)
  File "/home/eric/anaconda3/lib/python3.6/xml/dom/expatbuilder.py", line 911, in parse
    result = builder.parseFile(fp)
  File "/home/eric/anaconda3/lib/python3.6/xml/dom/expatbuilder.py", line 207, in parseFile
    parser.Parse(buffer, 0)
xml.parsers.expat.ExpatError: not well-formed (invalid token): line 5, column 14

解决方法

<?xml version="1.0" encoding="utf-8"?>

即在xml文件的第一行插入这个，如果已经有，则替换一下。