Replacing XML Element In Python

I am trying to replace the element inside of bbox with a new set of coordinates. my code : # import element tree import xml.etree.ElementTree as ET #import xml file

Solution 1:

The findall function, as the name implies, finds all matching elements, not just one.

So, after this:

elem = tree.findall('bbox')

elem is a list of Elements. And, as with any other list, this:

elem.txt = '40.5,41.5,-12.0,-1.2'

Is going to give you an error:

AttributeError: 'list' object has no attribute 'txt'

If you want to do something to every member of a list, you have to loop over it:

elems = tree.findall('bbox')
for elem in elems:
    elem.txt = '40.5,41.5,-12.0,-1.2'

Solution 2:

If your file isn't update it is most likely because you are not saving it, you can use the tree.write method to do just that.

tree.write('output.xml')

Solution 3:

# import element tree
import xml.etree.ElementTree as ET 

#import xml file
tree = ET.parse('C:/highway.xml')
root = tree.getroot()

elems = root.findall(".//bbox")

for elem in elems:
    elem.text = '40.5,41.5,-12.0,-1.2'

tree.write('C:/highway.xml')

Solution 4:

If you want to replace the text of all boundingboxes with '40.5,41.5,-12.0,-1.2', try this

bboxes = tree.xpath('//bbox')
for bbox in bboxes:
    bbox.text= '40.5,41.5,-12.0,-1.2'