python - 属性错误 : 'NoneType' object has no attribute 'split'

Question

我有一个具有这两个功能的脚本:

# Getting content of each page
def GetContent(url):
    response = requests.get(url)
    return response.content

# Extracting the sites
def CiteParser(content):
    soup = BeautifulSoup(content)
    print "---> site #: ",len(soup('cite'))
    result = []
    for cite in soup.find_all('cite'):
        result.append(cite.string.split('/')[0])
    return result

当我运行程序时出现以下错误:

result.append(cite.string.split('/')[0])
AttributeError: 'NoneType' object has no attribute 'split'

输出样本:

URL: <URL That I use to search 'can be google, bing, etc'>
---> site #:  10
site1.com
.
.
.
site10.com

URL: <URL That I use to search 'can be google, bing, etc'>
File "python.py", line 49, in CiteParser
    result.append(cite.string.split('/')[0])
AttributeError: 'NoneType' object has no attribute 'split'

Answer 1

可能会发生，字符串内部没有任何内容，而不是“无”类型，所以我可以假设首先检查您的字符串是否不是“无”

# Extracting the sites
def CiteParser(content):
    soup = BeautifulSoup(content)
    #print soup
    print "---> site #: ",len(soup('cite'))
    result = []
    for cite in soup.find_all('cite'):
        if cite.string is not None:
            result.append(cite.string.split('/'))
            print cite
    return result