python解析xml

#coding=utf-8
import sys
try:
    import xml.etree.cElementTree as ET
except ImportError:
    import xml.etree.ElementTree as ET

if __name__ == '__main__':
  if len(sys.argv) == 1:
    exit(1)
  xmlfile = sys.argv[1]
  tree = ET.ElementTree(file=xmlfile)
  for child in tree.findall('ql'):
    print child.text;

目标xml文件:

<HiveQL >
<ql>fff</ql>
</HiveQL>

输出结果:fff

不足的地方,内容中不不能出现<符号