chapter13-parse XML

Wire Format: The two types of serialization formats that we're going to talk about are XML and JSON
Node; Schema;Parsing

import xml.etree.ElementTree as ET
data = '''
<person>
  <name>Chuck</name>
  <phone type="intl">
     +1 734 303 4456
   </phone>
   <email hide="yes"/>
</person>'''
tree = ET.fromstring(data)
print('Name:', tree.find('name').text)
print('Attr:', tree.find('email').get('hide'))

import xml.etree.ElementTree as ET
input = '''
<stuff>
    <users>
        <user x="2">
            <id>001</id>
            <name>Chuck</name>
        </user>
        <user x="7">
            <id>009</id>
            <name>Brent</name>
        </user>
    </users>
</stuff>'''
stuff = ET.fromstring(input)
lst = stuff.findall('users/user')
print('User count:', len(lst))
for item in lst:
    print('Name', item.find('name').text)
    print('Id', item.find('id').text)
    print('Attribute', item.get("x"))
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PS C:\Users\Sharon\code\test> set-location C:\Users\Sharon\code    , cd

import urllib.request, urllib.parse, urllib.error
import xml.etree.ElementTree as ET
url = 'http://py4e-data.dr-chuck.net/comments_103948.xml'
data = urllib.request.urlopen(url).read()
tree = ET.fromstring(data)
lst= tree.findall('.//comment') # lst= tree.findall('comments/comment') # print('Comment count:', len(lst))
count=[int(item.find('count').text) for item in lst]
def sum_list(nums):
    sum=0
    for num in nums:
        sum=sum+num
    return sum
print (sum_list(count))