Using Python, trying to save an xml file with hex-coded html escape characters

Question

I am using ElementTree. I have a parsed xml document that looks like this:

<data>
    <name>
        <slash>/</slash>
    </name>
</data>

I would like to be able to save it using a hex code for the html escape character.

Since the hex code for '/' is 2F, I would like to persist the xml as:

<data>
    <name>
        <slash>&#x2f;</slash>
    </name>
</data>

What is the pythonic way to do this? Ideally, I would like this to work:

import xml.etree.ElementTree as ET

xml_doc = ET.tostring(source,method="xml")

xml_doc=change_to_html_hex_code(xml_doc)

out_file = open("output.xml",'w')
out_file.write(xml_doc)

Community · Accepted Answer · 2017-05-23 12:32:58Z

1

Using lxml:

x = """<data>
    <name>
        <slash>/</slash>
    </name>
</data>"""
import lxml.etree as et

xml_doc = et.fromstring(x)
for node in xml_doc.xpath("//*[contains(text(), '/')]"):
    node.text = node.text.replace("/","&#x2f;")



print(et.tostring(xml_doc))

Which would give you:

<data>
    <name>
        <slash>&amp;#x2f;</slash>
    </name>
</data>

Or xml:

from xml.etree import ElementTree  as et

xml_doc = et.fromstring(x)
for node in xml_doc.iter("*"):
    if "/" in node.text:
        node.text = node.text.replace("/","&#x2f;")

To write to the file, this answer covers both.

edited May 23, 2017 at 12:32

CommunityBot

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answered Jun 29, 2016 at 0:08

Padraic Cunningham

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Comments

Jason · Accepted Answer · 2016-06-28 23:46:12Z

1

You can use the codecs module (included in python)

import codecs

def returnHex(input):
    hexitup = codecs.getencoder('hex')
    return ("&#" + hexitup(input)[0]+";")

print(returnHex('/'))

This should return &#2f;

edited Jun 28, 2016 at 23:46

answered Jun 28, 2016 at 23:25

Jason

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