text: import urllib.request
  import urllib.parse
  import urllib.error
  import xml.etree.ElementTree as ET
  
  sum = 0
  number = 0
  xmlurl = 'http://py4e-data.dr-chuck.net/comments_9144.xml'
  url = input('Enter localtion ')
  print('Retrieving', url)
  uh = urllib.request.urlopen(url)
  data = uh.read()
  print('Retrieved', len(data), 'characters')
  tree = ET.fromstring(data)
  
  counts = tree.findall('.//count')
  for count in counts:
      sum = sum + int(count.text)
      number = number + 1
  print('count: ', number)
  print('sum: ', sum)
  