如何使用python解析xml feed?

问题描述：

我正在尝试解析此xml(http://www.reddit.com/r/videos/top/.rss)，但遇到了麻烦.我试图在每个项目中保存youtube链接，但是由于频道"子节点而遇到麻烦.如何达到此级别，以便随后可以遍历所有项目?

I am trying to parse this xml (http://www.reddit.com/r/videos/top/.rss) and am having troubles doing so. I am trying to save the youtube links in each of the items, but am having trouble because of the "channel" child node. How do I get to this level so I can then iterate through the items?

#reddit parse
reddit_file = urllib2.urlopen('http://www.reddit.com/r/videos/top/.rss')
#convert to string:
reddit_data = reddit_file.read()
#close file because we dont need it anymore:
reddit_file.close()

#entire feed
reddit_root = etree.fromstring(reddit_data)
channel = reddit_root.findall('{http://purl.org/dc/elements/1.1/}channel')
print channel

reddit_feed=[]
for entry in channel:   
    #get description, url, and thumbnail
    desc = #not sure how to get this

    reddit_feed.append([desc])

答

您可以尝试findall('channel/item')

import urllib2
from xml.etree import ElementTree as etree
#reddit parse
reddit_file = urllib2.urlopen('http://www.reddit.com/r/videos/top/.rss')
#convert to string:
reddit_data = reddit_file.read()
print reddit_data
#close file because we dont need it anymore:
reddit_file.close()

#entire feed
reddit_root = etree.fromstring(reddit_data)
item = reddit_root.findall('channel/item')
print item

reddit_feed=[]
for entry in item:   
    #get description, url, and thumbnail
    desc = entry.findtext('description')  
    reddit_feed.append([desc])

如何使用python解析xml feed?

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