调用自己定义的函数，报错

1. <pre style="background-color:#2b2b2b;color:#a9b7c6;font-family:'宋体';font-size:9.8pt;"><span style="color:#cc7832;">from </span>bs4 <span style="color:#cc7832;">import </span>BeautifulSoup
   
2. <span style="color:#cc7832;">import </span>requests
   
3. <span style="color:#cc7832;">import </span>pymongo
   
4. 
   
5. mongo_db = pymongo.MongoClient(<span style="color:#6a8759;">'loacllhost'</span><span style="color:#cc7832;">,</span><span style="color:#6897bb;">27017</span>)
   
6. ku = mongo_db[<span style="color:#6a8759;">'tongcheng'</span>]
   
7. ku_biao = ku[<span style="color:#6a8759;">'cate_urls'</span>]
   
8. 
   
9. cate_url = <span style="color:#6a8759;">'https://xa.58.com'
   
10. </span>start_url = <span style="color:#6a8759;">'https://xa.58.com/sale.shtml'
    
11. </span><span style="color:#6a8759;">
    
12. </span><span style="color:#6a8759;">
    
13. </span><span style="color:#cc7832;">def </span><span style="color:#ffc66d;">get_cate_urls</span>(url):
    
14.     wb_data = requests.get(url)
    
15.     soup = BeautifulSoup(wb_data.text<span style="color:#cc7832;">, </span><span style="color:#6a8759;">'lxml'</span>)
    
16.     links = soup.select(<span style="color:#6a8759;">'ul.ym-submnu > li > b > a'</span>)
    
17.     <span style="color:#cc7832;">for </span>link <span style="color:#cc7832;">in </span>links:
    
18.         cate_name = link.get_text()
    
19.         page_url = cate_url + link.get(<span style="color:#6a8759;">'href'</span>)
    
20.         <span style="color:#cc7832;">if </span>cate_name == <span style="color:#6a8759;">'</span><span style="color:#cc7832;">\xa0</span><span style="color:#6a8759;">'</span>:
    
21.             <span style="color:#cc7832;">pass
    
22. </span><span style="color:#cc7832;">        else</span>:
    
23.             data = {
    
24.                 <span style="color:#6a8759;">'cate_name'</span>: cate_name<span style="color:#cc7832;">,
    
25. </span><span style="color:#cc7832;">                 </span><span style="color:#6a8759;">'page_url'</span>: page_url
    
26.             }
    
27.         ku_biao.insert_one(data)
    
28. 
    
29. 
    
30. get_cate_urls(start_url)</pre>

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报错信息如下

1. Traceback (most recent call last):
   
2.   File "F:/python/58/Cate_List.py", line 30, in <module>
   
3.     get_cate_urls(start_url)
   
4.   File "F:/python/58/Cate_List.py", line 27, in get_cate_urls
   
5.     ku_biao.insert_one(data)
   
6.   File "F:\python\58\venv\lib\site-packages\pymongo\collection.py", line 700, in insert_one
   
7.     session=session),
   
8.   File "F:\python\58\venv\lib\site-packages\pymongo\collection.py", line 614, in _insert
   
9.     bypass_doc_val, session)
   
10.   File "F:\python\58\venv\lib\site-packages\pymongo\collection.py", line 602, in _insert_one
    
11.     acknowledged, _insert_command, session)
    
12.   File "F:\python\58\venv\lib\site-packages\pymongo\mongo_client.py", line 1279, in _retryable_write
    
13.     with self._tmp_session(session) as s:
    
14.   File "D:\Python\lib\contextlib.py", line 112, in __enter__
    
15.     return next(self.gen)
    
16.   File "F:\python\58\venv\lib\site-packages\pymongo\mongo_client.py", line 1611, in _tmp_session
    
17.     s = self._ensure_session(session)
    
18.   File "F:\python\58\venv\lib\site-packages\pymongo\mongo_client.py", line 1598, in _ensure_session
    
19.     return self.__start_session(True, causal_c**istency=False)
    
20.   File "F:\python\58\venv\lib\site-packages\pymongo\mongo_client.py", line 1551, in __start_session
    
21.     server_session = self._get_server_session()
    
22.   File "F:\python\58\venv\lib\site-packages\pymongo\mongo_client.py", line 1584, in _get_server_session
    
23.     return self._topology.get_server_session()
    
24.   File "F:\python\58\venv\lib\site-packages\pymongo\topology.py", line 429, in get_server_session
    
25.     None)
    
26.   File "F:\python\58\venv\lib\site-packages\pymongo\topology.py", line 200, in _select_servers_loop
    
27.     self._error_message(selector))
    
28. pymongo.errors.ServerSelectionTimeoutError: loacllhost:27017: [Errno 11001] getaddrinfo failed

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