Question

我正在尝试从tr表中找到financialStatement标记。一切正常，直到我编写最后一行rows = statement.findAll ( 'tr' )，这给出了：

AttributeError: 'NoneType' object has no attribute 'findAll'

这里是html文件：http://investing.businessweek.com/research/stocks/financials/financials.asp?ticker=TSCO:LN

import os
import urllib,re
from BeautifulSoup import BeautifulSoup 

path = '/Users/projectfile/'
listing = os.listdir(path)

for infile in listing:
    print "current file is: " + infile
    fileIN = open(path+infile, "r")
    line = fileIN.read()
    soup = BeautifulSoup ( line )
    statement = soup.find ( 'table' , { 'class' : "financialStatement" })
    rows = statement.findAll ( 'tr' )

Answer 1

这表示无statement。所以可能这一行：soup.find ( 'table' , { 'class' : "financialStatement" })找不到任何内容并返回None。

您可以添加if语句来测试if语句是否具有值：

if statement:
   rows = statement.findAll ( 'tr' )
else:
   rows = None

NoneType具有多个html文件的AttributeError

1 个答案: