XML Transform with Python

Question

I have a XML file like this:

<recommendations>
    <para>
        <text>Text.</text>
    </para>
    <para>
        <text>Text2.</text>
    </para>
</recommendations>

I want to make a new recommendations tag with "Text" concatenate with "Text2" using python: Text.Text2.

can someone help me?

I tried so far:

xml_parsed = ET.parse(file)
xml_parsed_root = xml_parsed.getroot()
recommendations_root = item.findall(r'recommendations')
for para in recommendations_root:
    for text in para:
        recommendations = ET.Element('recomendations')
        recommendations_root[text].text = text.text.append(recommendations)
    xml_root.append(item)

My expected Output:

<recommendations> Text.Text2. </recommendations>

Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. — Community
– Community Bot, Commented Oct 18, 2022 at 18:15
I need to make just a tag <recommendations> with all <text> tags inside. — Thiago Oberle
– Thiago Oberle, Commented Oct 18, 2022 at 18:21
How should the output look like? Please update the post. What did you try so far? — balderman
– balderman, Commented Oct 18, 2022 at 18:23
I tried xml_parsed = ET.parse(file) xml_parsed_root = xml_parsed.getroot() recommendations_root = item.findall(r'recommendations') for para in recommendations_root: for text in para: recommendations = ET.Element('recomendations') recommendations_root[text].text = text.text.append(recommendations) xml_root.append(item) — Thiago Oberle
– Thiago Oberle, Commented Oct 18, 2022 at 19:27

Hai Vu · Accepted Answer · 2022-10-18 21:06:47Z

2

To solve this problem, I introduce a function get_text() which iterates through the root of the input and collect all texts. The rest would be easy:

from xml.etree import ElementTree as ET

def get_text(r):
    buffer = ""
    for para in r:
        for text in para:
            buffer += text.text
    return buffer

doc = ET.parse("data.xml")
root = doc.getroot()

out = ET.Element("recommendations")
out.text = get_text(root)
print(ET.dump(out))

Output:

<recommendations>Text.Text2.</recommendations>

Update

Instead of writing get_text(), you can also use Xpath:

out = ET.Element("recommendations")
out.text = "".join(node.text for node in root.findall(".//text"))
print(ET.dump(out))

answered Oct 18, 2022 at 21:06

Hai Vu

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1 Comment

Thiago Oberle Over a year ago

I think I'll need to use the get_text() 'cause I have more variables, that I don't write here... I just write my problem. but thanks I think it'll work, tomorrow I'll try that

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