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了解raise remotedisconnected(“远程端关闭连接”

  •  1
  • irritable_phd_syndrome  · 技术社区  · 6 年前

    我正在抓取twitter,试图让好友/用户被跟踪以获得twitter用户列表。我在OSX10.13上使用Tweepy和Python3.6.5。缩写代码块:

    def get_friends_for_each_twitter_user(UserL=None, Name=None):
       .
       . # Auth keys and such
       .
       for user in UserL:  ### This is a list of USER class with the below fields ###
            ### Handle protected users ###
            if(user.protected == True):
                user.friendsL = "protected"
                continue
            screenNameL=[]
            friendIDL=[]
            friendL=[]
            friendScreenNameL=[]
            ### Get IDs of people that this user follows (i.e. 'friends') ###
            for page in tweepy.Cursor(api.friends_ids, screen_name=user.screenName).pages():
                friendIDL.extend(page)
                time.sleep(60)
            ## Loop through IDs, get user profile, keep only friends' screen name ###
            for i in range(0, len(friendIDL), 100):
                friendL.extend(api.lookup_users(user_ids=friendIDL[i:i+100]))
            ### Keep only screen name ###
            for friend in friendL:
                friendScreenNameL.append(friend._json['screen_name'])
            user.friendsL = friendScreenNameL
    

    当我这样做时,在收集 friends (即用户遵循的配置文件)对于大约十几个用户,我得到以下错误:

    Traceback (most recent call last):
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 601, in urlopen
        chunked=chunked)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 387, in _make_request
        six.raise_from(e, None)
      File "<string>", line 2, in raise_from
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 383, in _make_request
        httplib_response = conn.getresponse()
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1331, in getresponse
        response.begin()
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 297, in begin
        version, status, reason = self._read_status()
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 266, in _read_status
        raise RemoteDisconnected("Remote end closed connection without"
    http.client.RemoteDisconnected: Remote end closed connection without response
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/requests/adapters.py", line 440, in send
        timeout=timeout
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 639, in urlopen
        _stacktrace=sys.exc_info()[2])
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/util/retry.py", line 357, in increment
        raise six.reraise(type(error), error, _stacktrace)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/packages/six.py", line 685, in reraise
        raise value.with_traceback(tb)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 601, in urlopen
        chunked=chunked)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 387, in _make_request
        six.raise_from(e, None)
      File "<string>", line 2, in raise_from
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 383, in _make_request
        httplib_response = conn.getresponse()
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1331, in getresponse
        response.begin()
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 297, in begin
        version, status, reason = self._read_status()
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 266, in _read_status
        raise RemoteDisconnected("Remote end closed connection without"
    urllib3.exceptions.ProtocolError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/tweepy/binder.py", line 190, in execute
        proxies=self.api.proxy)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/requests/sessions.py", line 508, in request
        resp = self.send(prep, **send_kwargs)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/requests/sessions.py", line 618, in send
        r = adapter.send(request, **kwargs)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/requests/adapters.py", line 490, in send
        raise ConnectionError(err, request=request)
    requests.exceptions.ConnectionError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))
    
    During handling of the above exception, another exception occurred:
    
    Traceback (most recent call last):
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pdb.py", line 1667, in main
        pdb._runscript(mainpyfile)
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pdb.py", line 1548, in _runscript
        self.run(statement)
      File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/bdb.py", line 434, in run
        exec(cmd, globals, locals)
      File "<string>", line 1, in <module>
      File "/Users/myusername/Code/Python/hair_prod/src/main.py", line 170, in <module>
        main()
      File "/Users/myusername/Code/Python/hair_prod/src/main.py", line 141, in main
        get_friends_for_each_twitter_user(UserL=tresemmeUserL, Name="Tresemme")
      File "src/twitter_scraper.py", line 187, in get_friends_for_each_twitter_user
        friendL.extend(api.lookup_users(user_ids=friendIDL[i:i+100]))
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/tweepy/api.py", line 336, in lookup_users
        return self._lookup_users(post_data=post_data)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/tweepy/binder.py", line 250, in _call
        return method.execute()
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/tweepy/binder.py", line 192, in execute
        six.reraise(TweepError, TweepError('Failed to send request: %s' % e), sys.exc_info()[2])
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/six.py", line 692, in reraise
        raise value.with_traceback(tb)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/tweepy/binder.py", line 190, in execute
        proxies=self.api.proxy)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/requests/sessions.py", line 508, in request
        resp = self.send(prep, **send_kwargs)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/requests/sessions.py", line 618, in send
        r = adapter.send(request, **kwargs)
      File "/Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/requests/adapters.py", line 490, in send
        raise ConnectionError(err, request=request)
    tweepy.error.TweepError: Failed to send request: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))
    Uncaught exception. Entering post mortem debugging
    Running 'cont' or 'step' will restart the program
    > /Users/myusername/.local/virtualenvs/python3.6/lib/python3.6/site-packages/requests/adapters.py(490)send()
    -> raise ConnectionError(err, request=request)
    

    错误似乎是在线发生的 friendL.extend(api.lookup_users(user_ids=friendIDL[i:i+100])) get_friends_for_each_twitter_user() 功能

    问题 :

    1. 为什么会发生这个错误?

    2. 我该如何避免/绕过它?

    2 回复  |  直到 6 年前
        1
  •  1
  •   irritable_phd_syndrome    6 年前

    经过一段时间的处理,我相信这个问题是由我的网络连接引起的当这一切发生时,我连接到我的5GHz无线网络。当我连接到我的2.4GHz无线网络时,这些错误就不那么频繁了。在这种情况下,正确的做法是处理异常,等待几秒钟,然后重试。下面是适当的代码片段:

    def get_friends_for_each_twitter_user(UserL=None, Name=None):
        consumerKey =  #your value here
        consumerSecret = #your value here
        auth = tweepy.AppAuthHandler(consumerKey, consumerSecret)  ### Supposedly faster
        api = tweepy.API(auth, wait_on_rate_limit=True, wait_on_rate_limit_notify=True)  ## Now I don't have to handle rate limiting myself
    
        for user in UserL:
            accountStatus = 'active'
            if(user.protected == True):
                user.friendsL = "protected"
                continue
            screenNameL=[]
            friendIDL=[]
            friendL=[]
            friendScreenNameL=[]
            #### TWITTER LIMITS US #####
            try :
                for page in tweepy.Cursor(api.friends_ids, screen_name=user.screenName).pages():
                    friendIDL.extend(page)
            except tweepy.TweepError as error :
                if(error.__dict__['api_code'] == 34):
                    accountStatus = 'dead'
                    print("...{} is dead".format(user.screenName))
                    continue
                else:
                    raise
    
            for i in range(0, len(friendIDL), 100):
                ### This handles when exception occurs (probably due to connection issues)
                ### When exception occurs, sleeps then retries. I don't notice this error
                ### when I'm running on corporate Wifi, maybe my router just sucks
                while True:
                    try :
                        friendL.extend(api.lookup_users(user_ids=friendIDL[i:i+100]))
                    except tweepy.TweepError as error :
                        print("...Exception for {} : api_code {}".format(user.screenName,
                              error.__dict__['api_code']))
                        time.sleep(5)
                        continue
                    break
    
        2
  •  0
  •   kristaps    6 年前

    很多事情都可能导致出现错误,但是如果原因不是永久的,那么重试偶尔失败的api调用可以使脚本正常工作。

    根据 Tweepy docs api客户端构造函数接受 retry_count 默认为0的参数。尝试设置 重试计数 执行0以上的操作,并查看脚本是否能够成功完成,如下所示:

    api = tweepy.api.API(..., retry_count=3)