Writing only a particular tag's line number with conditions from xml file

Question

I have a xml file, in that file I have a tag named as SN and it occurs in multiple places.How do I write these line numbers as a list to another file.

Possible duplicate of [Is there a way to get a line number from an ElementTree Element](https://stackoverflow.com/questions/6949395/is-there-a-way-to-get-a-line-number-from-an-elementtree-element) — Lex Scarisbrick, Sep 01 '17 at 15:42

score 1 · Accepted Answer · answered Sep 01 '17 at 15:47

1

So, you can use sourceline!Have a look at the example I have given below. Assuming you have a SN tag in xml file at multiple places.

    from lxml import etree
    context = etree.terparse(your_file_path)
    line_number=[]
    for action,elem in context:
        if elem.tag=="SN" :
            print(elem.text)
            a=elem.sourceline
            print(a)
            line_number.append(a)

So here you have a empty list as line_number and when you go through the for loop fetching SN you can get its line number by sourceline and then append it to the list.

answered Sep 01 '17 at 15:47

Chetan_Vasudevan

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Yes I am able to get the SN line numbers this way, thanks. – user8521874 Sep 01 '17 at 15:52
Now you can use file write to write these to a file.Hope you know those steps. – Chetan_Vasudevan Sep 01 '17 at 15:55

Writing only a particular tag's line number with conditions from xml file

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