FeedparserDict 对象没有“内容”属性

Question

我正在尝试熟悉 feedparser 库，但我似乎无法访问 feedparser 对象中条目的内容属性：

d = feedparser.parse('http://www.reddit.com/r/python/.rss')
post = d.entries[2]
post.content

上面的代码块给了我这个错误：

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\feedparser.py", line 414, in __getattr__
    return self.__getitem__(key)
  File "C:\Python34\lib\site-packages\feedparser.py", line 375, in __getitem__
    return dict.__getitem__(self, key)
KeyError: 'content'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<pyshell#87>", line 1, in <module>
    content = post.content[0].value
  File "C:\Python34\lib\site-packages\feedparser.py", line 416, in __getattr__
    raise AttributeError("object has no attribute '%s'" % key)
AttributeError: object has no attribute 'content'

Answer 1

只要做一个 print(post)，你可能会发现它没有 content 属性。 RSS 提要并不能保证一定会有。