我试图在ScrapingHub上的脚本中使用pygsheets。脚本的pygsheets部分以：
google_client = pygsheets.authorize(service_file=CREDENTIALS_FILENAME, no_cache=True)
spreadsheet = google_client.open_by_key(SHEET_ID)
CREDENTIALS_FILENAME是我的Google服务帐户凭据文件名，SHEET_ID是电子表格ID;在某种程度上，这种情况正在发生：
2018-01-30 16:27:36 INFO [stdout] service_email : *******@**********.iam.gserviceaccount.com
2018-01-30 16:27:36 INFO [googleapiclient.discovery] URL being requested: GET https://www.googleapis.com/drive/v3/files?corpora=user&pageSize=500&fields=files%28id%2C+name%29&q=mimeType%3D%27application%2Fvnd.google-apps.spreadsheet%27&supportsTeamDrives=false&includeTeamDriveItems=false&alt=json
2018-01-30 16:27:36 INFO [oauth2client.transport] Attempting refresh to obtain initial access_token
2018-01-30 16:27:36 INFO [oauth2client.client] Refreshing access_token
2018-01-30 16:31:50 ERROR [root] Job runtime exception
Traceback (most recent call last):
File "/app/python/lib/python3.6/site-packages/httplib2/__init__.py", line 995, in _conn_request
conn.connect()
File "/usr/local/lib/python3.6/http/client.py", line 1392, in connect
super().connect()
File "/usr/local/lib/python3.6/http/client.py", line 936, in connect
(self.host,self.port), self.timeout, self.source_address)
File "/usr/local/lib/python3.6/socket.py", line 704, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "/usr/local/lib/python3.6/socket.py", line 745, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -2] Name or service not known
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/sh_scrapy/crawl.py", line 148, in _run_usercode
_run(args, settings)
File "/usr/local/lib/python3.6/site-packages/sh_scrapy/crawl.py", line 105, in _run
_run_pkgscript(args)
File "/usr/local/lib/python3.6/site-packages/sh_scrapy/crawl.py", line 128, in _run_pkgscript
d.run_script(scriptname, {'__name__': '__main__'})
File "/usr/local/lib/python3.6/site-packages/pkg_resources/__init__.py", line 1517, in run_script
exec(code, namespace, namespace)
File "/tmp/unpacked-eggs/__main__.egg/EGG-INFO/scripts/update_gsheets.py", line 190, in <module>
main(parse_args())
File "/tmp/unpacked-eggs/__main__.egg/EGG-INFO/scripts/update_gsheets.py", line 152, in main
google_client = pygsheets.authorize(service_file=CREDENTIALS_FILENAME, no_cache=True)
File "/app/python/lib/python3.6/site-packages/pygsheets/client.py", line 552, in authorize
rclient = Client(oauth=credentials, **client_kwargs)
File "/app/python/lib/python3.6/site-packages/pygsheets/client.py", line 79, in __init__
self._fetch_sheets()
File "/app/python/lib/python3.6/site-packages/pygsheets/client.py", line 92, in _fetch_sheets
results = self._execute_request(None, request, False)
File "/app/python/lib/python3.6/site-packages/pygsheets/client.py", line 418, in _execute_request
response = request.execute()
File "/app/python/lib/python3.6/site-packages/oauth2client/_helpers.py", line 133, in positional_wrapper
return wrapped(*args, **kwargs)
File "/app/python/lib/python3.6/site-packages/googleapiclient/http.py", line 839, in execute
method=str(self.method), body=self.body, headers=self.headers)
File "/app/python/lib/python3.6/site-packages/googleapiclient/http.py", line 166, in _retry_request
resp, content = http.request(uri, method, *args, **kwargs)
File "/app/python/lib/python3.6/site-packages/oauth2client/transport.py", line 175, in new_request
redirections, connection_type)
File "/app/python/lib/python3.6/site-packages/oauth2client/transport.py", line 282, in request
connection_type=connection_type)
File "/app/python/lib/python3.6/site-packages/httplib2/__init__.py", line 1322, in request
(response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
File "/app/python/lib/python3.6/site-packages/httplib2/__init__.py", line 1072, in _request
(response, content) = self._conn_request(conn, request_uri, method, body, headers)
File "/app/python/lib/python3.6/site-packages/httplib2/__init__.py", line 1002, in _conn_request
raise ServerNotFoundError("Unable to find the server at %s" % conn.host)
httplib2.ServerNotFoundError: Unable to find the server at www.googleapis.com
我之前测试过这个剧本并且过去常常工作，所以我不知道发生了什么。这是怎么回事？我错过了一些配置或身份验证步骤？