AttributeError：“NoneType”对象没有属性“get_text”。为什么我会收到此错误？ [复制]

Question

我能够成功抓取该网站，但现在无法正常工作。我现在收到“温度”变量的错误。

这些变量有效...

period_names = [item.find(class_='period-name').get_text() for item in items]

short_descriptions = [item.find(class_='short-desc').get_text() for item in items]

这个变量以前可以工作……现在不行了。

temperatures = [item.find(class_='temp').get_text() for item in items]

这是我的代码：

import requests
from bs4 import BeautifulSoup
page = requests.get('https://forecast.weather.gov/MapClick.php? 
lat=34.05349000000007&lon=-118.24531999999999#.XV8stehKg2w')
soup = BeautifulSoup(page.content, 'html.parser')
week = soup.find(id='seven-day-forecast-body')
items = (week.find_all(class_= 'tombstone-container'))

period_names = [item.find(class_='period-name').get_text() for item in 
items]
short_descriptions = [item.find(class_='short-desc').get_text() for item 
in items]
temperatures = [item.find(class_='temp').get_text() for item in items]

print(temperatures)

我希望代码能够打印出每天的温度，因为它过去一直有效。相反，我收到了 AttributeError 消息：

  File "C:\Users\Administrator\PycharmProjects\giraffe\apps.py", line 97, 
in <listcomp>
    temperatures = [item.find(class_='temp').get_text() for item in items]
AttributeError: 'NoneType' object has no attribute 'get_text'

Answer 1

你试过了吗：

temperatures = [item.find(class_='temp').get_text() if item.find(class_='temp') is not None else "" for item in items]

如果您的查找返回 None，这将返回一个空字符串