'BatchServiceClientConfiguration' object has no attribute 'signed_session'

[aizest]

Get "'BatchServiceClientConfiguration' object has no attribute 'signed_session'" exception when creating pool with the following Python code.

new_pool = batch.models.PoolAddParameter( id='GPU-Pool', virtual_machine_configuration=batch.models.VirtualMachineConfiguration( image_reference=image_ref_to_use, container_configuration=container_conf, node_agent_sku_id='batch.node.ubuntu 16.04'), vm_size='Standard_NC6', target_low_priority_nodes=1) batch_client.pool.add(new_pool)

I'm using the following related python packages under Python 3.7:

azure-batch==8.0.0 azure-common==1.1.23 azure-nspkg==3.0.2 azure-storage==0.36.0 msrestazure==0.6.2

Please advise, thanks!

The complete exception stack is like:

---

AttributeError Traceback (most recent call last) in () 7 vm_size='Standard_NC6', 8 target_low_priority_nodes=1) ----> 9 batch_client.pool.add(new_pool)

/anaconda3/lib/python3.7/site-packages/azure/batch/operations/_pool_operations.py in add(self, pool, pool_add_options, custom_headers, raw, **operation_config) 320 # Construct and send request 321 request = self._client.post(url, query_parameters, header_parameters, body_content) --> 322 response = self._client.send(request, stream=False, **operation_config) 323 324 if response.status_code not in [201]:

/anaconda3/lib/python3.7/site-packages/msrest/service_client.py in send(self, request, headers, content, **kwargs) 334 kwargs.setdefault('stream', True) 335 try: --> 336 pipeline_response = self.config.pipeline.run(request, **kwargs) 337 # There is too much thing that expects this method to return a "requests.Response" 338 # to break it in a compatible release.

/anaconda3/lib/python3.7/site-packages/msrest/pipeline/init.py in run(self, request, **kwargs) 195 pipeline_request = Request(request, context) # type: Request[HTTPRequestType] 196 first_node = self._impl_policies[0] if self._impl_policies else self._sender --> 197 return first_node.send(pipeline_request, **kwargs) # type: ignore 198 199 class HTTPSender(AbstractContextManager, ABC, Generic[HTTPRequestType, HTTPResponseType]):

/anaconda3/lib/python3.7/site-packages/msrest/pipeline/init.py in send(self, request, **kwargs) 148 self._policy.on_request(request, **kwargs) 149 try: --> 150 response = self.next.send(request, **kwargs) 151 except Exception: 152 if not self._policy.on_exception(request, **kwargs):

/anaconda3/lib/python3.7/site-packages/msrest/pipeline/requests.py in send(self, request, **kwargs) 63 session = request.context.session 64 try: ---> 65 self._creds.signed_session(session) 66 except TypeError: # Credentials does not support session injection 67 _LOGGER.warning("Your credentials class does not support session injection. Performance will not be at the maximum.")

AttributeError: 'BatchServiceClientConfiguration' object has no attribute 'signed_session'