无法从Python中的subprocess.Popen输出解析XML

Question

I'm using this library to parse my xml:

import xml.etree.cElementTree as xml

The xml input to the parser is an output of subprocess.Popen :

XMLFile = subprocess.Popen(xml_command,shell=True,stdout=subprocess.PIPE, executable="/bin/ksh").communicate()[0]
root = xml.XML(XMLFile)

I get this error:

IOError: [Errno 36] File name too long: ' <?xml version=\...'

However, when I pass the xml generated from the same command xml_command as file, it works perfectly fine:

root = xml.parse("/home/test.xml")

Answer 1

Try this:

import xml.etree.cElementTree as xml
p = subprocess.Popen(xml_command, shell=True, stdout=subprocess.PIPE, executable="/bin/ksh")
text, err = p.communicate()
root = xml.fromstring(text)

with python 2.6.6

Store output of subprocess.Popen call in a string

Answer 2

Try this

from xml.etree.ElementTree import fromstring
root = fromstring(subprocess.check_output(['/bin/ksh']))