求助一个异常的处理

syhu_007012

写爬虫， 代码是这样的

    while True:
        try:
            rep = requests.get(url, headers=header, timeout=timeout)
            rep.encoding = 'utf-8'
            return rep.text
        except TimeoutError:
            return
        except Exception as e:
            return

现在遇到异常， 请问各位怎么解决, 现在就想把这个异常跳过去， 不要终端程序执行就好了


Traceback (most recent call last):
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\connection.py", line 141, in _new_conn
    (self.host, self.port), self.timeout, **extra_kw)
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\util\connection.py", line 83, in create_connection
    raise err
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\util\connection.py", line 73, in create_connection
    sock.connect(sa)
TimeoutError: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 345, in _make_request
    self._validate_conn(conn)
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 844, in _validate_conn
    conn.connect()
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\connection.py", line 284, in connect
    conn = self._new_conn()
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\connection.py", line 150, in _new_conn
    self, "Failed to establish a new connection: %s" % e)
requests.packages.urllib3.exceptions.NewConnectionError: <requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x03AA3F10>: Failed to establish a new connection: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\adapters.py", line 423, in send
    timeout=timeout
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 649, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\packages\urllib3\util\retry.py", line 376, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
requests.packages.urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.google.com.hk', port=443): Max retries exceeded with url: /search?num=100&newwindow=1&safe=strict&q=1192491-61-4&oq=1192491-61-4&gs_l=serp.12...0.0.0.68587.0.0.0.0.0.0.0.0..0.0....0...1c..64.serp..0.0.0.UcKsPMPWUts (Caused by NewConnectionError('<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x03AA3F10>: Failed to establish a new connection: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。',))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/hsy/PycharmProjects/test/g-search.py", line 59, in <module>
    k = getresult(keyword)
  File "C:/Users/hsy/PycharmProjects/test/g-search.py", line 40, in getresult
    res = requests.get(url,  headers = header)
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\api.py", line 70, in get
    return request('get', url, params=params, **kwargs)
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\api.py", line 56, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\sessions.py", line 488, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\sessions.py", line 609, in send
    r = adapter.send(request, **kwargs)
  File "C:\Users\hsy\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\adapters.py", line 487, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='www.google.com.hk', port=443): Max retries exceeded with url: /search?num=100&newwindow=1&safe=strict&q=1192491-61-4&oq=1192491-61-4&gs_l=serp.12...0.0.0.68587.0.0.0.0.0.0.0.0..0.0....0...1c..64.serp..0.0.0.UcKsPMPWUts (Caused by NewConnectionError('<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x03AA3F10>: Failed to establish a new connection: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。',))

32269100

把return 改 为 pass 就可以了

syhu_007012

用pass也不行的， 异常依旧

我觉得我没搞清楚这个是什么异常，

ooxx7788

等等，你这个是现在函数里面，还是就是代码里面的

文质彬彬胡汉三

朋友你好
異常捕獲之後，你嘗試一下把return改爲 return ''
即捕獲一場之後返回一個空的字符串

沒有仔細看代碼，非常抱歉
在編碼之前加上狀態碼的捕獲，rep.raise_for_status(),這是狀態碼的異常捕獲

syhu_007012

ooxx7788 发表于 2017-4-21 18:09
等等，你这个是现在函数里面，还是就是代码里面的

这串代码是在一个函数里面， 所以才直接用了个return语句，

ooxx7788

syhu_007012 发表于 2017-4-24 10:51
这串代码是在一个函数里面， 所以才直接用了个return语句，

那就把异常里面的return 后面加个''