python-2.7 - 属性错误: 'NoneType' object has no attribute 'encode' in python 2. 7

Question

for item in root.findall('./channel/item'):
    news = {}
    # iterate child elements of item
    for child in item:
        # special checking for namespace object content:media
        if child.tag == '{http://search.yahoo.com/mrss/}content':
            news['media'] = child.attrib['url']
        else:
            news[child.tag] = child.text.encode('utf8')
    newsitems.append(news)

有什么问题吗？我该如何解决这个问题？

Answer 1

这里:

    else:
        news[child.tag] = child.text.encode('utf8')

在某些情况下，

child.text 为None。因此，在这种情况下不要创建字典条目，例如这样:

    elif child.text is not None:
        news[child.tag] = child.text.encode('utf8')