Convert XML to CSV file
Do not use the findall function, as it will look for att tags in the whole tree. Just iterate the tree in order from top to bottom and grab the relevant elements in them.
from xml.etree import ElementTreetree = ElementTree.parse('input.xml')root = tree.getroot()for att in root: first = att.find('attval').text for subatt in att.find('children'): second = subatt.find('attval').text print('{},{}'.format(first, second))Which gives:
$ python process.py Data,StudyvalData,SiteInfo,ageInfo,gender