Парсинг xml файла - Python

<?xml version="1.0" encoding="UTF-8" ?>
<DeviceStatus version="1.0" xmlns="http://www.isapi.org/ver20/XMLSchema">
<currentDeviceTime>2016-09-11T21:27:54+12:00</currentDeviceTime>
<deviceUpTime>217496</deviceUpTime>
<CPUList>
<CPU>
<cpuDescription>ARMv7 Processor rev 2 (v7l)</cpuDescription>
<cpuUtilization>4</cpuUtilization>
</CPU>
</CPUList>
<MemoryList>
<Memory>
<memoryDescription>DDR Memory</memoryDescription>
<memoryUsage>
80.148438</memoryUsage>
<memoryAvailable>
33.449219</memoryAvailable>
</Memory>
</MemoryList>
</DeviceStatus>

#!/usr/bin/python3
import requests
import sys
import readinifile as readini
from xml.etree import cElementTree as ET
r = requests.get('http://'+readini.getip(sys.argv[1])+'/status', auth=(readini.getlogin(sys.argv[1]),readini.getpassword(sys.argv[1])), stream=True)
root = ET.fromstring(r.text)
for child in root.iterfind('.//'):
    print (child.tag, child.keys(), child.items(), child.text)