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Proxy error when running script as scheduled task

I have a scraping script that works fine when I run it from the console. However when I run it as a scheduled task I get proxy connection error. I can't figure why there would be a difference between the two? I'm using the same virtual env.

Here's the error from my log:

2017-03-29 06:02 - ERROR - HTTPConnectionPool(host='nl.proxymesh.com', port=31280): Max retries exceeded with url: http://www.***.dk/emner/038-6740 (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7fdede3f0c88>: Failed to establish a new connection: [Errno 111] Connection refused',)))
Traceback (most recent call last):
File "/home/rune/env/lib/python3.5/site-packages/requests/packages/urllib3/connection.py", line 141, in _new_conn
(self.host, self.port), self.timeout, **extra_kw)
File "/home/rune/env/lib/python3.5/site-packages/requests/packages/urllib3/util/connection.py", line 83, in create_connection
raise err
File "/home/rune/env/lib/python3.5/site-packages/requests/packages/urllib3/util/connection.py", line 73, in create_connection
sock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/rune/env/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/home/rune/env/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 356, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.5/http/client.py", line 1106, in request
self._send_request(method, url, body, headers)
File "/usr/lib/python3.5/http/client.py", line 1151, in _send_request
self.endheaders(body)
File "/usr/lib/python3.5/http/client.py", line 1102, in endheaders
self._send_output(message_body)
File "/usr/lib/python3.5/http/client.py", line 934, in _send_output
self.send(msg)
File "/usr/lib/python3.5/http/client.py", line 877, in send
self.connect()
File "/home/rune/env/lib/python3.5/site-packages/requests/packages/urllib3/connection.py", line 166, in connect
conn = self._new_conn()
File "/home/rune/env/lib/python3.5/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.HTTPConnection object at 0x7fdede3f0c88>: 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 "/home/rune/env/lib/python3.5/site-packages/requests/adapters.py", line 423, in send
timeout=timeout
File "/home/rune/env/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 649, in urlopen
_stacktrace=sys.exc_info()[2])
File "/home/rune/env/lib/python3.5/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: HTTPConnectionPool(host='nl.proxymesh.com', port=31280): Max retries exceeded with url: http://www.***.dk/emner/038-6740 (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7fdede3f0c88>: 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 "/home/rune/Danamica/Scraping/ScrapeStamdataUpdate.py", line 105, in get_html
r = requests.get(url, headers=headers, proxies=proxies)
File "/home/rune/env/lib/python3.5/site-packages/requests/api.py", line 70, in get
return request('get', url, params=params, **kwargs)
File "/home/rune/env/lib/python3.5/site-packages/requests/api.py", line 56, in request
return session.request(method=method, url=url, **kwargs)
File "/home/rune/env/lib/python3.5/site-packages/requests/sessions.py", line 488, in request
resp = self.send(prep, **send_kwargs)
File "/home/rune/env/lib/python3.5/site-packages/requests/sessions.py", line 609, in send
r = adapter.send(request, **kwargs)
File "/home/rune/env/lib/python3.5/site-packages/requests/adapters.py", line 485, in send
raise ProxyError(e, request=request)
requests.exceptions.ProxyError: HTTPConnectionPool(host='nl.proxymesh.com', port=31280): Max retries exceeded with url: http://www.***.dk/emner/038-6740 (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7fdede3f0c88>: Failed to establish a new connection: [Errno 111] Connection refused',)))

And here's the part the function in my script where the error happens:

def get_html(self, url, retries=5, sleep_retries=10, sleep_time=900):
        try:
            ua = UserAgent()
            headers = {"User-Agent": ua.random}
            proxy_list = [{'http': 'http://email@gmail.com:***@fr.proxymesh.com:31280',
                       'https': 'http://email@gmail.com:***@fr.proxymesh.com:31280'},
                      {'http': 'http://email@gmail.com:***@de.proxymesh.com:31280',
                       'https': 'http://email@gmail.com:***@de.proxymesh.com:31280'},
                      {'http': 'http://email@gmail.com:***@nl.proxymesh.com:31280',
                       'https': 'http://email@gmail.com:***@nl.proxymesh.com:31280'},
                      {'http': 'http://email@gmail.com:***@uk.proxymesh.com:31280',
                       'https': 'http://email@gmail.com:***@uk.proxymesh.com:31280'},
                      {'http': 'http://email@gmail.com:***@ch.proxymesh.com:31280',
                       'https': 'http://email@gmail.com:***@ch.proxymesh.com:31280'}]
            proxies = random.choice(proxy_list)
            r = requests.get(url, headers=headers, proxies=proxies)
            bsObj = BeautifulSoup(r.content, 'lxml')
            return bsObj
        except Exception as exc:  # Starts a loop.
            logger.error(exc, exc_info=True)
            r = None
            if retries > 0:
                logger.info("Retrying " + datetime.now().strftime(self.date_time_format))
                logger.info("Retries left: " + str(retries))
                retries = retries - 1
                return retries
                return requests.get(url, headers=headers, proxies=proxies)
            if retries == 0 and sleep_retries > 0:
                logger.info("sleeping")
                time.sleep(sleep_time)
                logger.info("retrying after sleep" + datetime.now().strftime(self.date_time_format))
                logger.info("retries left:" + str(sleep_retries))
                sleep_retries = sleep_retries - 1
                return self.get_request(url, 0, sleep_retries)
deleted-user-1175758 | 10 posts | March 29, 2017, 7:11 p.m. | permalink

They run on different machines -- is there a possibility that the owner of the site you're connecting to has blocked access from the task server's IP address? I've heard of that happening sometimes when people accidentally flood a machine with requests from a scheduled task.

Staff giles | 12671 posts | PythonAnywhere staff | March 29, 2017, 8:18 p.m. | permalink

Thanks for the quick answer. That seems possible. I can ask the proxy service provider (Proxymesh) if they have blocked the IP. Can you let me know the task server's IP address? Here or in an email. Thanks again.

deleted-user-1175758 | 10 posts | March 29, 2017, 8:24 p.m. | permalink

Just to wrap this up -- I think that one of my colleagues sent you the IPs in an email, and I was going to post them here for completeness, but I won't -- they change regularly, and it would be confusing for anyone who finds the post in the future.

Staff giles | 12671 posts | PythonAnywhere staff | March 31, 2017, 2:47 p.m. | permalink

Yeah, I got the IPs. Thanks for the assistance. The problem is solved now.

deleted-user-1175758 | 10 posts | March 31, 2017, 3:17 p.m. | permalink

Great! Thanks for confirming.

Staff giles | 12671 posts | PythonAnywhere staff | March 31, 2017, 3:20 p.m. | permalink