Azure Python SDK not able to consume output of list_of_vms with azure-mgmt-compute==20.0.0

Question

I am using azure python sdk for resource management.
below snippet was working with Azure -> azure-mgmt-compute==12.0.0 after upgrade to azure-mgmt-compute==20.0.0 below snippet is not working

creds = ServicePrincipalCredentials(client_id=client_id, secret=secret, tenant=tenant_id, **kwargs)

compute_client =  ComputeManagementClient(creds,
                                   subscription_id,
                                   base_url='https://management.azure.com')

paged_iter = compute_client.virtual_machines.list_all(raw=True)

output = []
paged_iter.get(paged_iter.next_link)
while True:
    chunk = json.loads(paged_iter.raw.response.content)
    if 'nextLink' in chunk:
        paged_iter.get(chunk['nextLink'])
    else:
        break
resp = {'value': output}
print(resp)

after upgrade getting error

AttributeError: 'ItemPaged' object has no attribute 'get'

Please help to understand how to consume output of
compute_client.virtual_machines.list_all(raw=True)

Answer 1

@Sanvar Inamdar Apologies for the delay in response and all the inconvenience caused because of the issue.

As mentioned here :

The Azure libraries for Python are currently being updated to share common cloud patterns such as authentication protocols, logging, tracing, transport protocols, buffered responses, and retries.

This would change the Authentication mechanism a bit as well. In the older version, ServicePrincipalCredentials in azure.common was used for authenticating to Azure and creating a service client.

In the newer version, the authentication mechanism has been re-designed and replaced by azure-identity library in order to provide unified authentication based on Azure Identity for all Azure SDKs. Run pip install azure-identity to get the package.

In terms of code, what then was:

from azure.common.credentials import ServicePrincipalCredentials
from azure.mgmt.compute import ComputeManagementClient
credentials = ServicePrincipalCredentials(
client_id='xxxxx',
secret='xxxxx',
tenant='xxxxx'
)
compute_client = ComputeManagementClient(
credentials=credentials,
subscription_id=SUBSCRIPTION_ID
)

is now:

from azure.identity import ClientSecretCredential
from azure.mgmt.compute import ComputeManagementClient

credential = ClientSecretCredential(
tenant_id='xxxxx',
client_id='xxxxx',
client_secret='xxxxx'
)

compute_client = ComputeManagementClient(
credential=credential,
subscription_id=SUBSCRIPTION_ID
)
You can then use the list_all method with compute_client to list all VMs as usual:

List all Virtual Machines in the specified subscription

def list_virtual_machines():
for vm in compute_client.virtual_machines.list_all():
print(vm.name)

list_virtual_machines()

From your mentioned code snippet it seems like you are using Service Principal Credentials.

Hope it helps!!!

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