Regarding XML to CSV conversion in python query-CodePudding

Its great pleasure to meet you via this platform.. As beginner, I have question. Here, I have sample XML document. I have to convert it to csv form from xml form.

<message>
<mail>[email protected]</mail>
<address>
<houseno> 123 </houseno>
</address>
</message>

<message>
<mail>[email protected]</mail>
<contact> 23278378</contact>
<address>
<houseno> 123 </houseno>
</address>
</message>

<message>
<mail>[email protected]</mail>
<address>
<houseno> 123 </houseno>
</address>
<place> Mumbai </place>
</message>

In above xml , I want to access mail , contact address and place and stored in csv file.. There are no common tags in message tag in this document. hence I am unable to access it.. Kindly help me how can I do it..?

CodePudding user response：

One approach would be to install and use beautifulsoup. This can locate all of the message entries. For example:

from bs4 import BeautifulSoup
import csv

xml = """<message>
<mail>[email protected]</mail>
<address>
<houseno> 123 </houseno>
</address>
</message>

<message>
<mail>[email protected]</mail>
<contact> 23278378</contact>
<address>
<houseno> 123 </houseno>
</address>
</message>

<message>
<mail>[email protected]</mail>
<address>
<houseno> 123 </houseno>
</address>
<place> Mumbai </place>
</message>"""

soup = BeautifulSoup(xml, "html.parser")

with open('output.csv', 'w', newline='', encoding='utf-8') as f_output:
    csv_output = csv.writer(f_output)
    csv_output.writerow(['Mail', 'Address', 'Place'])
    
    for message in soup.find_all('message'):
        mail = message.mail.text
        address = message.address.houseno.get_text(strip=True)
        place = message.place.get_text(strip=True) if message.place else ''
        csv_output.writerow([mail, address, place])

This would create a CSV output file as:

Mail,Address,Place
[email protected],123,
[email protected],123,
[email protected],123,Mumbai