Specify newline character for cElementTree

Question

Code

I'm writing an xml file with cElementTree like this:

cElementTree.ElementTree(xml_tree]).write(xmlPath, encoding="ISO-8859-1", xml_declaration=True)  

---

actual result

This gives the following file (on Windows):

<?xml version='1.0' encoding='iso-8859-1'?><tag1 = "1"></tag1>

So the newlines are missing.

I tried adding the appropiate windows newline characters \r\n 'by hand', now I get this:

<?xml version='1.0' encoding='iso-8859-1'?><tag1 = "1">
</tag1>

---

desired result

However, I would like to have the correct newline character after each line, so that my output should look this:

<?xml version='1.0' encoding='iso-8859-1'?>
<tag1 = "1">
</tag1>

How can I achieve that?

Answer 1

lxml supports pretty printing, cElementTree doesn't.

from lxml import etree
xml_str = "<parent><child>text</child><child>other text</child></parent>"
root = etree.fromstring(xml_str)
print etree.tostring(root, pretty_print=True)

See Python pretty XML printer for XML string and Pretty printing XML in Python