<div dir="ltr"><div>I have encountered this problem using awscli-1.11.117.<br><br>Upgrading to awscli-1.11.132 didn't help.<br><br></div><div>Downgrading python3-requests to version 2.12.4-1 fixed the issue for me.<br></div><div><br></div>This is a stack trace when running with awscli-1.11.132:<br><div><br>Traceback (most recent call last):<br>  File "./update-service", line 23, in <module><br>    for output in stack.outputs:<br>  File "/usr/lib/python3/dist-packages/boto3/resources/factory.py", line 339, in property_loader<br>    self.load()<br>  File "/usr/lib/python3/dist-packages/boto3/resources/factory.py", line 505, in do_action<br>    response = action(self, *args, **kwargs)<br>  File "/usr/lib/python3/dist-packages/boto3/resources/action.py", line 83, in __call__<br>    response = getattr(parent.meta.client, operation_name)(**params)<br>  File "/usr/lib/python3/dist-packages/botocore/client.py", line 310, in _api_call<br>    return self._make_api_call(operation_name, kwargs)<br>  File "/usr/lib/python3/dist-packages/botocore/client.py", line 586, in _make_api_call<br>    operation_model, request_dict)<br>  File "/usr/lib/python3/dist-packages/botocore/endpoint.py", line 141, in make_request<br>    return self._send_request(request_dict, operation_model)<br>  File "/usr/lib/python3/dist-packages/botocore/endpoint.py", line 170, in _send_request<br>    success_response, exception):<br>  File "/usr/lib/python3/dist-packages/botocore/endpoint.py", line 249, in _needs_retry<br>    caught_exception=caught_exception, request_dict=request_dict)<br>  File "/usr/lib/python3/dist-packages/botocore/hooks.py", line 227, in emit<br>    return self._emit(event_name, kwargs)<br>  File "/usr/lib/python3/dist-packages/botocore/hooks.py", line 210, in _emit<br>    response = handler(**kwargs)<br>  File "/usr/lib/python3/dist-packages/botocore/retryhandler.py", line 183, in __call__<br>    if self._checker(attempts, response, caught_exception):<br>  File "/usr/lib/python3/dist-packages/botocore/retryhandler.py", line 251, in __call__<br>    caught_exception)<br>  File "/usr/lib/python3/dist-packages/botocore/retryhandler.py", line 269, in _should_retry<br>    return self._checker(attempt_number, response, caught_exception)<br>  File "/usr/lib/python3/dist-packages/botocore/retryhandler.py", line 317, in __call__<br>    caught_exception)<br>  File "/usr/lib/python3/dist-packages/botocore/retryhandler.py", line 223, in __call__<br>    attempt_number, caught_exception)<br>  File "/usr/lib/python3/dist-packages/botocore/retryhandler.py", line 359, in _check_caught_exception<br>    raise caught_exception<br>  File "/usr/lib/python3/dist-packages/botocore/endpoint.py", line 204, in _get_response<br>    proxies=self.proxies, timeout=self.timeout)<br>  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 612, in send<br>    r = adapter.send(request, **kwargs)<br>  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 440, in send<br>    timeout=timeout<br>  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 600, in urlopen<br>    chunked=chunked)<br>  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 345, in _make_request<br>    self._validate_conn(conn)<br>  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 846, in _validate_conn<br>    conn.connect()<br>  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 311, in connect<br>    if self.ssl_context is None:<br>AttributeError: 'AWSHTTPSConnection' object has no attribute 'ssl_context'<br><br><br><br></div></div>