我在这里找到了解决方案：http : //code.activestate.com/recipes/576750-pretty-print- xml/
from xml.dom.minidom import parseString
pretty_print = lambda data: '\n'.join([line for line in parseString(data).toprettyxml(indent=' '*2).split('\n') if line.strip()])
输出：
<?xml version="1.0" ?>
<testsuite errors="0" failures="3" name="TestSet_2013-01-23 14_28_00.510935" skip="0" tests="3" time="142.695" timestamp="2013-01-23 14:28:00.515460">
<testcase classname="TC test" name="t1" status="Failed" time="27.013"/>
<testcase classname="TC test" name="t2" status="Failed" time="78.325"/>
<testcase classname="TC test" name="t3" status="Failed" time="37.357"/>
</testsuite>
这可以帮助您更轻松地将其应用到函数中：
def new_prettify():
reparsed = parseString(CONTENT)
print '\n'.join([line for line in reparsed.toprettyxml(indent=' '*2).split('\n') if line.strip()])
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