AWS Session Token is ignored in Wrangler Session

[alexanderromanov]

Reproduction steps:
Create Wrangler Session like this:

    sts_client = boto3.client('sts')
    assume_resp = sts_client.assume_role(RoleArn=some_role,
                                         RoleSessionName=str(uuid.uuid4()),
                                         DurationSeconds=3600)
    role_credentials = assume_resp['Credentials']

    boto_session = boto3.session.Session(aws_access_key_id=role_credentials['AccessKeyId'],
                                         aws_secret_access_key=role_credentials['SecretAccessKey'],
                                         aws_session_token=role_credentials['SessionToken'])

    role_session = awswrangler.Session(aws_access_key_id=role_credentials['AccessKeyId'],
                                            aws_secret_access_key=role_credentials['SecretAccessKey'],
                                            aws_session_token=role_credentials['SessionToken'])

and then make some request to AWS with it.

Expected result: request goes through

Actual result: exception from boto client
"botocore.exceptions.ClientError: An error occurred (InvalidClientTokenId) when calling the GetCallerIdentity operation: The security token included in the request is invalid."

[alexanderromanov]

PR to fix it will follow. Basically the issue is with _load_new_boto3_session not respecting aws_session_token at all

[igorborgest]

Thank you @alexanderromanov! Good catch!