CODEWITHSUNDEEP
xmlpython-3.xelementtreestringio
user2678074
user2678074

Reputation: 825

String IO to element.etree

I want to parse StringIO in form of xml with etree, hovever I have following error. Example:

import xml.etree.ElementTree
from io import StringIO

def main():
    in_mem_file = StringIO()
    in_mem_file.write('<?xml version="1.0" encoding="UTF-8"?>')
    in_mem_file.write('<tag>')
    in_mem_file.write('</tag>')
    print(in_mem_file.getvalue())
    e = xml.etree.ElementTree.parse(in_mem_file).getroot()

This raises following error:

xml.etree.ElementTree.ParseError: no element found: line 1, column 0

Upvotes: 2

Views: 2527

Answers (2)

pygeneer
pygeneer

Reputation: 1

You have to reset the cursor position of the StringIO object before handing it to ET:

in_mem_file = StringIO()
in_mem_file.write('<?xml version="1.0" encoding="UTF-8"?>')
in_mem_file.write('<tag>')
in_mem_file.seek(0)

Upvotes: 0

mzjn
mzjn

Reputation: 50947

Provide the whole XML document when creating the StringIO object. Using write() does not work (but I don't have an explanation for that).

import xml.etree.ElementTree as ET
from io import StringIO

XML = """<?xml version="1.0" encoding="UTF-8"?>
    <tag>
    </tag>"""

in_mem_file = StringIO(XML)
tree = ET.parse(in_mem_file)

Upvotes: 3

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