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ConnectionError: HTTPSConnectionPool #3209

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@mvala

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@mvala
2018-01-18 06:57:43,036  28e04a15777a48cb  indico.flask - ERROR errors.py:107 -- HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /pypi/indico/json (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0xda97a90>: Failed to establish a new connection: [Errno -2] Name or service not known',))

Traceback (most recent call last):
  File "/opt/indico/.venv/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request
    rv = self.dispatch_request()
  File "/opt/indico/.venv/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/opt/indico/.venv/lib/python2.7/site-packages/indico/web/flask/util.py", line 114, in wrapper
    return obj().process()
  File "/opt/indico/.venv/lib/python2.7/site-packages/indico/web/rh.py", line 270, in process
    res = self._do_process()
  File "/opt/indico/.venv/lib/python2.7/site-packages/indico/web/rh.py", line 249, in _do_process
    return self._process()
  File "/opt/indico/.venv/lib/python2.7/site-packages/indico/modules/core/controllers.py", line 205, in _process
    return jsonify(indico=self._check_version('indico', indico.__version__),
  File "/opt/indico/.venv/lib/python2.7/site-packages/indico/modules/core/controllers.py", line 182, in _check_version
    response = requests.get('https://pypi.python.org/pypi/{}/json'.format(distribution))
  File "/opt/indico/.venv/lib/python2.7/site-packages/requests/api.py", line 72, in get
    return request('get', url, params=params, **kwargs)
  File "/opt/indico/.venv/lib/python2.7/site-packages/requests/api.py", line 58, in request
    return session.request(method=method, url=url, **kwargs)
  File "/opt/indico/.venv/lib/python2.7/site-packages/requests/sessions.py", line 508, in request
    resp = self.send(prep, **send_kwargs)
  File "/opt/indico/.venv/lib/python2.7/site-packages/requests/sessions.py", line 618, in send
    r = adapter.send(request, **kwargs)
  File "/opt/indico/.venv/lib/python2.7/site-packages/requests/adapters.py", line 508, in send
    raise ConnectionError(e, request=request)
ConnectionError: HTTPSConnectionPool(host='pypi.python.org', port=443): Max retries exceeded with url: /pypi/indico/json (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0xda97a90>: Failed to establish a new connection: [Errno -2] Name or service not known',))

{u'data': {u'get': {'_': u'1516255062639'},
           u'headers': {'Accept': u'*/*',
                        'Accept-Encoding': u'gzip, deflate, br',
                        'Accept-Language': u'en-US,en;q=0.5',
                        'Content-Length': u'',
                        'Content-Type': u'',
                        'Cookie': u'indico_session=***; ajs_user_id=null; ajs_group_id=null; ajs_anonymous_id=%2200000000000000000000000000%22',
                        'Host': u'indico.openbrain.sk',
                        'Referer': u'https://indico.openbrain.sk/admin/settings/',
                        'User-Agent': u'Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0',
                        'X-Csrf-Token': u'***',
                        'X-Requested-With': u'XMLHttpRequest'},
           u'json': None,
           u'post': {},
           u'url': {}},
 u'endpoint': u'core.version_check',
 u'id': '28e04a15777a48cb',
 u'ip': '46.193.138.1',
 u'method': 'GET',
 u'referrer': 'https://indico.openbrain.sk/admin/settings/',
 u'rh': 'RHVersionCheck',
 u'time': '2018-01-18T06:57:43.111483',
 u'url': u'https://indico.openbrain.sk/admin/version-check?_=1516255062639',
 u'user': {u'email': u'mvala@saske.sk', u'id': 1, u'name': u'Martin Vala'},
 u'user_agent': u'Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0'}

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