Python:urllib.error.HTTPError:HTTP 错误 404:未找到

我编写了一个脚本来查找 SO 问题标题中的拼写错误。 我用了大约一个月。效果很好。

但是现在，当我尝试运行它时，我得到了这个。

Traceback (most recent call last): 
  File "copyeditor.py", line 32, in <module> 
    find_bad_qn(i) 
  File "copyeditor.py", line 15, in find_bad_qn 
    html = urlopen(url) 
  File "/usr/lib/python3.4/urllib/request.py", line 161, in urlopen 
    return opener.open(url, data, timeout) 
  File "/usr/lib/python3.4/urllib/request.py", line 469, in open 
    response = meth(req, response) 
  File "/usr/lib/python3.4/urllib/request.py", line 579, in http_response 
    'http', request, response, code, msg, hdrs) 
  File "/usr/lib/python3.4/urllib/request.py", line 507, in error 
    return self._call_chain(*args) 
  File "/usr/lib/python3.4/urllib/request.py", line 441, in _call_chain 
    result = func(*args) 
  File "/usr/lib/python3.4/urllib/request.py", line 587, in http_error_default 
    raise HTTPError(req.full_url, code, msg, hdrs, fp) 
urllib.error.HTTPError: HTTP Error 404: Not Found 

这是我的代码

import json 
from urllib.request import urlopen 
from bs4 import BeautifulSoup 
from enchant import DictWithPWL 
from enchant.checker import SpellChecker 
 
my_dict = DictWithPWL("en_US", pwl="terms.dict") 
chkr = SpellChecker(lang=my_dict) 
result = [] 
 
 
def find_bad_qn(a): 
    url = "https://stackoverflow.com/questions?page=" + str(a) + "&sort=active" 
    html = urlopen(url) 
    bsObj = BeautifulSoup(html, "html5lib") 
    que = bsObj.find_all("div", class_="question-summary") 
    for div in que: 
        link = div.a.get('href') 
        name = div.a.text 
        chkr.set_text(name.lower()) 
        list1 = [] 
        for err in chkr: 
            list1.append(chkr.word) 
        if (len(list1) > 1): 
            str1 = ' '.join(list1) 
            result.append({'link': link, 'name': name, 'words': str1}) 
 
 
print("Please Wait.. it will take some time") 
for i in range(298314,298346): 
    find_bad_qn(i) 
for qn in result: 
    qn['link'] = "https://stackoverflow.com" + qn['link'] 
for qn in result: 
    print(qn['link'], " Error Words:", qn['words']) 
    url = qn['link'] 

更新

这是导致问题的网址。即使此网址存在。

https://stackoverflow.com/questions?page=298314&sort=active

我尝试将范围更改为一些较低的值。现在工作正常。

为什么上面的 url 会发生这种情况？

请您参考如下方法:

我也有同样的问题。我想使用 urllib 获取的 url 存在并且可以使用普通浏览器访问，但 urllib 告诉我 404。

我的解决方案是不使用 urllib:

import requests 
requests.get(url) 

这对我有用。