报错解决：RequestsDependencyWarning: urllib3 (1.24.3) or chardet (3.0.4) doesn't match a supported versio

此文首发于我的个人博客：报错解决 RequestsDependencyWarning urllib3 (1.24.3) or chardet (3.0.4) doesn’t match a supported version! — zhang0peter的个人博客

下午在用Python的requests库跑爬虫时遇到报错：

/usr/lib/python3/dist-packages/requests/__init__.py:80: RequestsDependencyWarning: urllib3 (1.24.3) or chardet (3.0.4) doesn't match a supported version!RequestsDependencyWarning)
Traceback (most recent call last):File "/usr/local/lib/python3.6/dist-packages/urllib3/connection.py", line 159, in _new_conn(self._dns_host, self.port), self.timeout, **extra_kw)File "/usr/local/lib/python3.6/dist-packages/urllib3/util/connection.py", line 80, in create_connectionraise errFile "/usr/local/lib/python3.6/dist-packages/urllib3/util/connection.py", line 70, in create_connectionsock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refusedDuring handling of the above exception, another exception occurred:Traceback (most recent call last):File "/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py", line 594, in urlopenself._prepare_proxy(conn)File "/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py", line 805, in _prepare_proxyconn.connect()File "/usr/local/lib/python3.6/dist-packages/urllib3/connection.py", line 301, in connectconn = self._new_conn()File "/usr/local/lib/python3.6/dist-packages/urllib3/connection.py", line 168, in _new_connself, "Failed to establish a new connection: %s" % e)
urllib3.exceptions.NewConnectionError: <urllib3.connection.VerifiedHTTPSConnection object at 0x7f022a48c160>: Failed to establish a new connection: [Errno 111] Connection refusedDuring handling of the above exception, another exception occurred:Traceback (most recent call last):File "/usr/lib/python3/dist-packages/requests/adapters.py", line 440, in sendtimeout=timeoutFile "/usr/local/lib/python3.6/dist-packages/urllib3/connectionpool.py", line 638, in urlopen_stacktrace=sys.exc_info()[2])File "/usr/local/lib/python3.6/dist-packages/urllib3/util/retry.py", line 399, in incrementraise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.youtube.com', port=443): Max retries exceeded with url: /channel/UC6UjHs0PLnmXvffsmFGpLXw/about (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f022a48c160>: Failed to establish a new connection: [Errno 111] Connection refused',)))During handling of the above exception, another exception occurred:Traceback (most recent call last):File "youtube-spider/youtube-channel-spider.py", line 191, in <module>requests_get_channel_data(url=channel_url)File "youtube-spider/youtube-channel-spider.py", line 73, in requests_get_channel_datar = requests.get(url=url, headers=head, proxies=proxy)File "/usr/lib/python3/dist-packages/requests/api.py", line 72, in getreturn request('get', url, params=params, **kwargs)File "/usr/lib/python3/dist-packages/requests/api.py", line 58, in requestreturn session.request(method=method, url=url, **kwargs)File "/usr/lib/python3/dist-packages/requests/sessions.py", line 520, in requestresp = self.send(prep, **send_kwargs)File "/usr/lib/python3/dist-packages/requests/sessions.py", line 630, in sendr = adapter.send(request, **kwargs)File "/usr/lib/python3/dist-packages/requests/adapters.py", line 502, in sendraise ProxyError(e, request=request)
requests.exceptions.ProxyError: HTTPSConnectionPool(host='www.youtube.com', port=443): Max retries exceeded with url: /channel/UC6UjHs0PLnmXvffsmFGpLXw/about (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f022a48c160>: Failed to establish a new connection: [Errno 111] Connection refused',)))

然后我先查询了RequestsDependencyWarning: urllib3 (1.24.3) or chardet (3.0.4) doesn't match a supported version!
网上的解决方法是重新安装库，切换版本。

pip install --upgrade urllib3==1.24.3

然后我发现这是一个Warning，不是error，所以应该还有其他问题。

我查看了代码，发现我本地代码设置了代理，而服务器上的没有代理，我没有取消代理，自然报错了。
程序正常运行后依然有Warning，但可以顺利运行了。

/usr/lib/python3/dist-packages/requests/__init__.py:80: RequestsDependencyWarning: urllib3 (1.24.3) or chardet (3.0.4) doesn't match a supported version!RequestsDependencyWarning)

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报错解决：RequestsDependencyWarning: urllib3 (1.24.3) or chardet (3.0.4) doesn't match a supported versio

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