When working with the Azure Python SDK, you may encounter an error stating that the ‘serviceprincipalcredentials’ object has no attribute ‘get_tok’. This error typically occurs when you are trying to authenticate using a service principal but have not properly initialized the credentials object.

Solution 1: Importing the Required Modules

The first solution involves ensuring that you have imported the necessary modules for authentication. In this case, you need to import the ‘ServicePrincipalCredentials’ module from the ‘azure.common.credentials’ package.

from azure.common.credentials import ServicePrincipalCredentials

# Rest of your code

By importing the ‘ServicePrincipalCredentials’ module, you will have access to the ‘get_tok’ method, which is used for authentication.

Solution 2: Updating the Azure Python SDK

If you have already imported the necessary modules but are still encountering the error, it may be due to an outdated version of the Azure Python SDK. In this case, you can try updating the SDK to the latest version.

pip install --upgrade azure

Updating the Azure Python SDK will ensure that you have the latest features and bug fixes, which may resolve the ‘get_tok’ attribute error.

Solution 3: Verifying the Service Principal Credentials

If the above solutions do not resolve the issue, it is possible that there is an issue with the service principal credentials themselves. In this case, you should verify that the credentials are correctly initialized and passed to the appropriate methods.

from azure.common.credentials import ServicePrincipalCredentials

# Initialize the service principal credentials
credentials = ServicePrincipalCredentials(client_id='', secret='', tenant='')

# Use the credentials object for authentication
# Rest of your code

Ensure that you have provided the correct values for the ‘client_id’, ‘secret’, and ‘tenant’ parameters when initializing the ‘ServicePrincipalCredentials’ object. These values can be obtained from the Azure portal.

After trying the above solutions, it is recommended to use Solution 1 as the preferred option. Importing the required modules ensures that you have access to the necessary methods and functionalities for authentication. However, if the issue persists, you can try Solution 2 to update the Azure Python SDK or Solution 3 to verify the service principal credentials.