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

这个错误通常是因为你尝试访问一个None对象的属性或方法，而None对象没有该属性或方法。通常情况下，这是因为你的代码中出现了错误，导致你的变量被赋值为None，而你尝试在该变量上调用方法或属性。例如，在使用requests库时，如果你的请求返回了None，那么你尝试访问该请求的状态码属性时就会出现这个错误。

以下是一个例子，演示了如何在requests库中出现这个错误：

import requests

response = requests.get('https://www.google.com')
print(response.status_code) # 正常输出200

response = requests.get('https://www.nonexistentwebsite.com')
print(response.status_code) # 报错：AttributeError: 'NoneType' object has no attribute 'status_code'

在第二个请求中，由于网站不存在，requests库返回了None，而你尝试在该None对象上访问状态码属性，因此出现了这个错误。

相关问题

AttributeError: 'NoneType' object has no attribute 'python_exit_status怎么解决

AttributeError: 'NoneType' object has no attribute 'python_exit_status'是一个常见的错误，通常是由于在程序中使用了未初始化的变量或对象。解决此问题的方法有以下几种：

1.检查代码中是否存在未初始化的变量或对象，如果存在，则需要对其进行初始化。

2.检查代码中是否存在语法错误或拼写错误，这些错误可能会导致程序无法正常运行。

3.使用try-except语句捕获异常并进行处理，例如：

try:
    # your code here
except AttributeError:
    # handle the exception here

4.检查代码中是否存在循环引用或内存泄漏等问题，这些问题可能会导致程序出现异常。

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

This error occurs when you try to call the method `find_all()` on a variable that is None. The `find_all()` method is a function of the BeautifulSoup object in Python, which is used to parse HTML or XML documents.

Here is an example of how this error might occur:

import requests
from bs4 import BeautifulSoup

# make a request to a webpage
response = requests.get("https://www.example.com")

# parse the HTML content of the webpage using BeautifulSoup
soup = BeautifulSoup(response.content, "html.parser")

# find all the links on the webpage
links = soup.find_all("a")

# print the links
for link in links:
    print(link.get("href"))

If the `response.content` is None or there is some other issue with the request, then `soup` will be None and calling `find_all()` on it will result in the 'NoneType' object has no attribute 'find_all' error.

To avoid this error, you should check that the object you are calling the method on is not None before calling the method.

Here is an example of how you could modify the code above to avoid this error:

import requests
from bs4 import BeautifulSoup

# make a request to a webpage
response = requests.get("https://www.example.com")

# check that the response was successful
if response.status_code == 200:

    # parse the HTML content of the webpage using BeautifulSoup
    soup = BeautifulSoup(response.content, "html.parser")

    # find all the links on the webpage
    if soup is not None:
        links = soup.find_all("a")

        # print the links
        for link in links:
            print(link.get("href"))

    else:
        print("Error parsing HTML content")
else:
    print("Error: could not retrieve webpage")