Getting error as below while running "compute_client.virtual_machines.get"

Traceback (most recent call last):
File "az_checksV0.1.py", line 79, in
vm = compute_client.virtual_machines.get(rg, i, expand = 'instanceview')
File "/Users/dhanesh.u/PycharmProjects/virtual-machines-python-manage/azure_py2/lib/python2.7/site-packages/azure/mgmt/compute/v2018_10_01/operations/virtual_machines_operations.py", line 557, in get
raise exp
msrestazure.azure_exceptions.CloudError: Azure Error: InvalidApiVersionParameter
Message: The api-version '2018-10-01' is invalid. The supported versions are '2018-11-01,2018-09-01,2018-08-01,2018-07-01,2018-06-01,2018-05-01,2018-02-01,2018-01-01,2017-12-01,2017-08-01,2017-06-01,2017-05-10,2017-05-01,2017-03-01,2016-09-01,2016-07-01,2016-06-01,2016-02-01,2015-11-01,2015-01-01,2014-04-01-preview,2014-04-01,2014-01-01,2013-03-01,2014-02-26,2014-04'.

PIP FREEZE

azure-mgmt==4.0.0
azure-mgmt-advisor==2.0.1
azure-mgmt-applicationinsights==0.1.1
azure-mgmt-authorization==0.50.0
azure-mgmt-batch==5.0.1
azure-mgmt-batchai==2.0.0
azure-mgmt-billing==0.2.0
azure-mgmt-botservice==0.1.0
azure-mgmt-cdn==3.0.0
azure-mgmt-cognitiveservices==3.0.0
azure-mgmt-commerce==1.0.1
azure-mgmt-compute==4.3.1
azure-mgmt-consumption==2.0.0
azure-mgmt-containerinstance==1.2.1
azure-mgmt-containerregistry==2.4.0
azure-mgmt-containerservice==4.2.2
azure-mgmt-cosmosdb==0.5.2
azure-mgmt-datafactory==0.6.0
azure-mgmt-datalake-analytics==0.2.0
azure-mgmt-datalake-nspkg==3.0.1
azure-mgmt-datalake-store==0.5.0
azure-mgmt-datamigration==0.1.0
azure-mgmt-devspaces==0.1.0
azure-mgmt-devtestlabs==2.2.0
azure-mgmt-dns==2.1.0
azure-mgmt-eventgrid==0.4.0
azure-mgmt-eventhub==2.2.0
azure-mgmt-hanaonazure==0.1.1
azure-mgmt-hdinsight==0.1.0
azure-mgmt-iotcentral==1.0.0
azure-mgmt-iothub==0.6.0
azure-mgmt-iothubprovisioningservices==0.2.0
azure-mgmt-keyvault==1.1.0
azure-mgmt-loganalytics==0.2.0
azure-mgmt-logic==3.0.0
azure-mgmt-machinelearningcompute==0.4.1
azure-mgmt-managementgroups==0.1.0
azure-mgmt-managementpartner==0.1.0
azure-mgmt-maps==0.1.0
azure-mgmt-marketplaceordering==0.1.0
azure-mgmt-media==1.0.1
azure-mgmt-monitor==0.5.2
azure-mgmt-msi==0.2.0
azure-mgmt-network==2.4.0
azure-mgmt-notificationhubs==2.0.0
azure-mgmt-nspkg==3.0.2
azure-mgmt-policyinsights==0.1.0
azure-mgmt-powerbiembedded==2.0.0
azure-mgmt-rdbms==1.5.0
azure-mgmt-recoveryservices==0.1.0
azure-mgmt-recoveryservicesbackup==0.1.1
azure-mgmt-redis==5.0.0
azure-mgmt-relay==0.1.0
azure-mgmt-reservations==0.3.1
azure-mgmt-resource==2.0.0
azure-mgmt-scheduler==2.0.0
azure-mgmt-search==2.0.0
azure-mgmt-servicebus==0.5.3
azure-mgmt-servicefabric==0.2.0
azure-mgmt-signalr==0.1.1
azure-mgmt-sql==0.9.1
azure-mgmt-storage==3.1.0
azure-mgmt-subscription==0.2.0
azure-mgmt-trafficmanager==0.50.0
azure-mgmt-web==0.40.0
azure-multiapi-storage==0.2.2
azure-nspkg==3.0.2
azure-servicebus==0.21.1
azure-servicefabric==6.3.0.0
azure-servicemanagement-legacy==0.20.6
azure-storage-blob==1.3.1
azure-storage-common==1.4.0
azure-storage-file==1.4.0
azure-storage-nspkg==3.1.0
azure-storage-queue==1.4.0
msrestazure==0.5.1