Python 3 'NoneType' 对象没有属性 'text'

Question

# import libraries
from urllib.request import urlopen
from bs4 import BeautifulSoup

#specify the url
html = 'https://www.bloomberg.com/quote/SPX:IND'

# query the website and return the html to thevariable 'page'
page = urlopen(html)

# parse the html using beautiful soup and store in variable 'soup'
data = BeautifulSoup(page, 'html.parser')

#take out the <div> of name and get its value
name_box = data.find('h1', attrs={'class': 'companyName_99a4824b'})

name = name_box.text.strip() #strip is used to remove starting and trailing
print (name)

# get the index price
price_box = data.find('div', attrs={'class':'priceText_1853e8a5'})
price = price_box.text
print (price)

我一直在遵循 medium.com here 上的指南，但由于缺乏 python 和脚本知识，我遇到了一些冲突，但我认为我的错误是

姓名=name_box.text

因为文本未定义，我不确定他们是否希望我使用 BeautifulSoup 库来定义它。任何帮助可能会受到赞赏。实际误差会在下面

 RESTART: C:/Users/Parsons PC/AppData/Local/Programs/Python/Python36-32/projects/Scripts/S&P 500 website scraper/main.py 
Traceback (most recent call last):
  File "C:/Users/Parsons PC/AppData/Local/Programs/Python/Python36-32/projects/Scripts/S&P 500 website scraper/main.py", line 17, in <module>
    name = name_box.text.strip() #strip is used to remove starting and trailing
AttributeError: 'NoneType' object has no attribute 'text'

Answer 1

网站 https://www.bloomberg.com/quote/SPX:IND 不包含 class 名称 companyName_99a4824b 的 <h1> 标签。这就是您收到上述错误的原因。

在网站上。 <h1> 标签看起来像这样，

<h1 class="companyName__99a4824b">S&amp;P 500 Index</h1>

所以要 select 它，你必须将 class 名称更改为 companyName__99a4824b。

name_box = data.find('h1', attrs={'class': 'companyName__99a4824b'})

最终结果：

# import libraries
from urllib.request import urlopen
from bs4 import BeautifulSoup

#specify the url
html = 'https://www.bloomberg.com/quote/SPX:IND'

# query the website and return the html to thevariable 'page'
page = urlopen(html)

# parse the html using beautiful soup and store in variable 'soup'
data = BeautifulSoup(page, 'html.parser')

#take out the <div> of name and get its value
name_box = data.find('h1', attrs={'class': 'companyName__99a4824b'}) #edited companyName_99a4824b -> companyName__99a4824b

name = name_box.text.strip() #strip is used to remove starting and trailing
print (name)

# get the index price
price_box = data.find('div', attrs={'class':'priceText__1853e8a5'}) #edited priceText_1853e8a5 -> priceText__1853e8a5
price = price_box.text
print (price)

如果你也能处理这个异常就更好了，以备将来class更名。

Python 3 'NoneType' 对象没有属性 'text'

Python 3 'NoneType' object has no attribute 'text'

python

scripting

nonetype