Cant set api response as tree in Element tree

[hey_arnold]

Hi All,

I can't get the response from the api to be recognised if I try and define tree. Any suggestions would be much appreciated.

import requests
import xml.etree.ElementTree as ET

def getXML():
    url="http://energywatch.natgrid.co.uk/EDP-PublicUI/PublicPI/InstantaneousFlowWebService.asmx"
    
    headers = {'content-type': 'application/soap+xml; charset=utf-8'}
    body ="""<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
                <soap12:Body>
                <GetInstantaneousFlowData xmlns="http://www.NationalGrid.com/EDP/UI/" />
                </soap12:Body>
                </soap12:Envelope>"""

    response = requests.post(url,data=body,headers=headers)
    return response.content
    
    tree = ET.XML(response) 
    root = tree.getroot()
    root.tag
    print(root.tag)

    for EDPObjectName in root.iter('EDPObjectName'):
        print(EDPObjectName.text)

I can't work out what I'm doing wrong, because If I download the XML file then run the following code, it works:

import xml.etree.ElementTree as ET
tree = ET.parse("C:\\Users\\Hey Arnold\\Documents\\Python Scripts\\new1.xml")

root = tree.getroot()
root.tag
print(root.tag)

for EDPObjectName in root.iter('EDPObjectName'):
    print(EDPObjectName.text)