fix for _ files

src/aks-preview/azext_aks_preview/__init__.py

@@ -27,23 +27,20 @@ def __init__(self, cli_ctx=None):
         register_aks_preview_resource_type()
 
         acs_custom = CliCommandType(operations_tmpl='azext_aks_preview.custom#{}')
-        super(ContainerServiceCommandsLoader, self).__init__(cli_ctx=cli_ctx,
-                                                             custom_command_type=acs_custom,
-                                                             resource_type=CUSTOM_MGMT_AKS_PREVIEW)
+        super().__init__(
+            cli_ctx=cli_ctx,
+            custom_command_type=acs_custom,
+            resource_type=CUSTOM_MGMT_AKS_PREVIEW,
+        )
 
     def load_command_table(self, args):
-        super(ContainerServiceCommandsLoader, self).load_command_table(args)
+        super().load_command_table(args)
         from azext_aks_preview.commands import load_command_table
         load_command_table(self, args)
         return self.command_table
 
     def load_arguments(self, command):
-        from sys import version_info
-        if version_info[0] < 3:
-            super(ContainerServiceCommandsLoader, self).load_arguments(command)
-        else:
-            super().load_arguments(command)
-
+        super().load_arguments(command)
         from azext_aks_preview._params import load_arguments
         load_arguments(self, command)
 

src/aks-preview/azext_aks_preview/_client_factory.py

@@ -99,7 +99,7 @@ def get_auth_management_client(cli_ctx, scope=None, **_):
         if matched:
             subscription_id = matched.groupdict()['subscription']
         else:
-            raise CLIError("{} does not contain subscription Id.".format(scope))
+            raise CLIError(f"{scope} does not contain subscription Id.")
     return get_mgmt_service_client(cli_ctx, ResourceType.MGMT_AUTHORIZATION, subscription_id=subscription_id)
 
 
@@ -129,23 +129,22 @@ def get_resource_by_name(cli_ctx, resource_name, resource_type):
     if not elements:
         from azure.cli.core._profile import Profile
         profile = Profile(cli_ctx=cli_ctx)
-        message = "The resource with name '{}' and type '{}' could not be found".format(
-            resource_name, resource_type)
+        message = f"The resource with name '{resource_name}' and type '{resource_type}' could not be found"
         try:
             subscription = profile.get_subscription(
                 cli_ctx.data['subscription_id'])
             raise CLIError(
-                "{} in subscription '{} ({})'.".format(message, subscription['name'], subscription['id']))
-        except (KeyError, TypeError):
-            raise CLIError(
-                "{} in the current subscription.".format(message))
+                f"{message} in subscription '{subscription['name']} ({subscription['id']})'."
+            )
+        except (KeyError, TypeError) as exc:
+            raise CLIError(f"{message} in the current subscription.") from exc
 
     elif len(elements) == 1:
         return elements[0]
     else:
         raise CLIError(
-            "More than one resources with type '{}' are found with name '{}'.".format(
-                resource_type, resource_name))
+            f"More than one resources with type '{resource_type}' are found with name '{resource_name}'."
+        )
 
 
 def get_msi_client(cli_ctx, subscription_id=None):
@@ -154,7 +153,11 @@ def get_msi_client(cli_ctx, subscription_id=None):
 
 
 def get_providers_client_factory(cli_ctx, subscription_id=None):
-    return get_mgmt_service_client(cli_ctx, ResourceType.MGMT_RESOURCE_RESOURCES, subscription_id=subscription_id).providers
+    return get_mgmt_service_client(
+        cli_ctx,
+        ResourceType.MGMT_RESOURCE_RESOURCES,
+        subscription_id=subscription_id
+    ).providers
 
 
 def get_keyvault_client(cli_ctx, subscription_id=None):

src/aks-preview/azext_aks_preview/_completers.py

@@ -88,4 +88,5 @@ def _get_location_from_resource_group(cli_ctx, resource_group_name):
         # Print a warning if the user hit [TAB] but the `--resource-group` argument was incorrect.
         # For example: "Warning: Resource group 'bogus' could not be found."
         from argcomplete import warn
-        warn('Warning: {}'.format(err.message))
+        warn(f'Warning: {err.message}')
+        return None

src/aks-preview/azext_aks_preview/_consts.py

@@ -67,7 +67,11 @@
 CONST_MANAGED_CLUSTER_SKU_TIER_STANDARD = "standard"
 CONST_MANAGED_CLUSTER_SKU_TIER_PREMIUM = "premium"
 
-CONST_OUTBOUND_MIGRATION_MULTIZONE_TO_NATGATEWAY_MSG = "Warning: this AKS cluster has multi-zonal nodepools, but NAT Gateway is not currently zone redundant. Migrating outbound connectivity to NAT Gateway could lead to a reduction in zone redundancy for this cluster. Continue?"
+CONST_OUTBOUND_MIGRATION_MULTIZONE_TO_NATGATEWAY_MSG = (
+    "Warning: this AKS cluster has multi-zonal nodepools, but NAT Gateway is not currently zone redundant. "
+    "Migrating outbound connectivity to NAT Gateway could lead to a reduction in zone redundancy for this cluster. "
+    "Continue?"
+)
 # load balancer backend pool type
 CONST_LOAD_BALANCER_BACKEND_POOL_TYPE_NODE_IP = "nodeIP"
 CONST_LOAD_BALANCER_BACKEND_POOL_TYPE_NODE_IPCONFIGURATION = "nodeIPConfiguration"
@@ -77,8 +81,8 @@
 CONST_PRIVATE_DNS_ZONE_NONE = "none"
 
 # used to set identity profile (for kubelet)
-CONST_MANAGED_IDENTITY_OPERATOR_ROLE = 'Managed Identity Operator'
-CONST_MANAGED_IDENTITY_OPERATOR_ROLE_ID = 'f1a07417-d97a-45cb-824c-7a7467783830'
+CONST_MANAGED_IDENTITY_OPERATOR_ROLE = "Managed Identity Operator"
+CONST_MANAGED_IDENTITY_OPERATOR_ROLE_ID = "f1a07417-d97a-45cb-824c-7a7467783830"
 
 # consts for upgrade channel
 CONST_RAPID_UPGRADE_CHANNEL = "rapid"
@@ -168,31 +172,42 @@
 
 # all supported addons
 ADDONS = {
-    'http_application_routing': CONST_HTTP_APPLICATION_ROUTING_ADDON_NAME,
-    'monitoring': CONST_MONITORING_ADDON_NAME,
-    'virtual-node': CONST_VIRTUAL_NODE_ADDON_NAME,
-    'kube-dashboard': CONST_KUBE_DASHBOARD_ADDON_NAME,
-    'azure-policy': CONST_AZURE_POLICY_ADDON_NAME,
-    'ingress-appgw': CONST_INGRESS_APPGW_ADDON_NAME,
+    "http_application_routing": CONST_HTTP_APPLICATION_ROUTING_ADDON_NAME,
+    "monitoring": CONST_MONITORING_ADDON_NAME,
+    "virtual-node": CONST_VIRTUAL_NODE_ADDON_NAME,
+    "kube-dashboard": CONST_KUBE_DASHBOARD_ADDON_NAME,
+    "azure-policy": CONST_AZURE_POLICY_ADDON_NAME,
+    "ingress-appgw": CONST_INGRESS_APPGW_ADDON_NAME,
     "confcom": CONST_CONFCOM_ADDON_NAME,
-    'open-service-mesh': CONST_OPEN_SERVICE_MESH_ADDON_NAME,
-    'azure-keyvault-secrets-provider': CONST_AZURE_KEYVAULT_SECRETS_PROVIDER_ADDON_NAME,
-    'gitops': CONST_GITOPS_ADDON_NAME,
-    'web_application_routing': CONST_WEB_APPLICATION_ROUTING_KEY_NAME
+    "open-service-mesh": CONST_OPEN_SERVICE_MESH_ADDON_NAME,
+    "azure-keyvault-secrets-provider": CONST_AZURE_KEYVAULT_SECRETS_PROVIDER_ADDON_NAME,
+    "gitops": CONST_GITOPS_ADDON_NAME,
+    "web_application_routing": CONST_WEB_APPLICATION_ROUTING_KEY_NAME,
 }
 
 ADDONS_DESCRIPTIONS = {
-    CONST_HTTP_APPLICATION_ROUTING_ADDON_NAME: '- configure ingress with automatic public DNS name creation',
-    CONST_MONITORING_ADDON_NAME: '- turn on Log Analytics monitoring. Uses the Log Analytics Default Workspace if it exists, else creates one. Specify "--workspace-resource-id" to use an existing workspace.\nIf monitoring addon is enabled --no-wait argument will have no effect.',
-    CONST_VIRTUAL_NODE_ADDON_NAME: '- enable AKS Virtual Node. Requires --aci-subnet-name to provide the name of an existing subnet for the Virtual Node to use.\naci-subnet-name must be in the same vnet which is specified by --vnet-subnet-id (required as well).',
-    CONST_KUBE_DASHBOARD_ADDON_NAME: '- n/a',
-    CONST_AZURE_POLICY_ADDON_NAME: '- enable Azure policy. The Azure Policy add-on for AKS enables at-scale enforcements and safeguards on your clusters in a centralized, consistent manner.\nLearn more at aka.ms/aks/policy.',
-    CONST_INGRESS_APPGW_ADDON_NAME: '- enable Application Gateway Ingress Controller addon (PREVIEW).',
-    CONST_CONFCOM_ADDON_NAME: '- enable confcom addon, this will enable SGX device plugin by default (PREVIEW).',
-    CONST_OPEN_SERVICE_MESH_ADDON_NAME: '- enable Open Service Mesh addon (PREVIEW).',
-    CONST_AZURE_KEYVAULT_SECRETS_PROVIDER_ADDON_NAME: '- enable Azure Keyvault Secrets Provider addon.',
-    CONST_GITOPS_ADDON_NAME: '- enable GitOps (PREVIEW).',
-    CONST_WEB_APPLICATION_ROUTING_KEY_NAME: '- enable web application routing (PREVIEW).'
+    CONST_HTTP_APPLICATION_ROUTING_ADDON_NAME: "- configure ingress with automatic public DNS name creation",
+    CONST_MONITORING_ADDON_NAME: (
+        "- turn on Log Analytics monitoring. Uses the Log Analytics Default Workspace if it exists, "
+        'else creates one. Specify "--workspace-resource-id" to use an existing workspace.\n'
+        "If monitoring addon is enabled --no-wait argument will have no effect."
+    ),
+    CONST_VIRTUAL_NODE_ADDON_NAME: (
+        "- enable AKS Virtual Node. Requires --aci-subnet-name to provide the name of an existing subnet for "
+        "the Virtual Node to use.\naci-subnet-name must be in the same vnet which is specified by "
+        "--vnet-subnet-id (required as well)."
+    ),
+    CONST_KUBE_DASHBOARD_ADDON_NAME: "- n/a",
+    CONST_AZURE_POLICY_ADDON_NAME: (
+        "- enable Azure policy. The Azure Policy add-on for AKS enables at-scale enforcements and safeguards on "
+        "your clusters in a centralized, consistent manner.\nLearn more at aka.ms/aks/policy."
+    ),
+    CONST_INGRESS_APPGW_ADDON_NAME: "- enable Application Gateway Ingress Controller addon (PREVIEW).",
+    CONST_CONFCOM_ADDON_NAME: "- enable confcom addon, this will enable SGX device plugin by default (PREVIEW).",
+    CONST_OPEN_SERVICE_MESH_ADDON_NAME: "- enable Open Service Mesh addon (PREVIEW).",
+    CONST_AZURE_KEYVAULT_SECRETS_PROVIDER_ADDON_NAME: "- enable Azure Keyvault Secrets Provider addon.",
+    CONST_GITOPS_ADDON_NAME: "- enable GitOps (PREVIEW).",
+    CONST_WEB_APPLICATION_ROUTING_KEY_NAME: "- enable web application routing (PREVIEW).",
 }
 
 # consts for credential
@@ -218,22 +233,24 @@
 # Moving away from 1:n release to avoid unwanted breaking changes with auto upgrades.
 CONST_DRAFT_CLI_VERSION = "v0.0.22"
 
-CONST_CUSTOM_CA_TEST_CERT = '-----BEGIN CERTIFICATE-----\n' \
-                            'MIICljCCAX4CCQC9zUAgqqqrWzANBgkqhkiG9w0BAQsFADANMQswCQYDVQQGEwJQ\n' \
-                            'TDAeFw0yMjA5MTQwNjIzMjdaFw0yMjA5MTUwNjIzMjdaMA0xCzAJBgNVBAYTAlBM\n' \
-                            'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAopKNIIbvvcPCw9fc4KLX\n' \
-                            'KDtRZobp5L+/1hCN+3OGhk5NvSTpSUrFifxqc0o3IF7YkO3K1n2jAvCMXO16Bf9b\n' \
-                            'OAR7VkCrwGFVkXNjM4wvXAX8CNNvjqd1zDPXSKdE7Wd8k3fTzx6nGUM0UgljIPhH\n' \
-                            'yh4a4Zujd5Ig2P/ZSX0pGJm47JTtMu7MDFHVM5wRWcCrN/H0TCYPIvEOs0B8AZxc\n' \
-                            'p3TF7A6veT5U9pVhQ3Xl9JN6LvvLqPxG3ea10rdv9DYzaiXmSY3ujI3Ri1Q11uWC\n' \
-                            'dtrFIpFu5cHW2OBW+jBXxL0v8xQmkxTLik4BR/PLCl30wxKQNsq3pjDgu0mutKuu\n' \
-                            '5wIDAQABMA0GCSqGSIb3DQEBCwUAA4IBAQAVEAIs/hLwTVCwpEXdoXR24LelNNuB\n' \
-                            '/8ptK6lyjE11XwfMN3yy7F2oB1lrA4rI3j9obpDsHDJBNB13bi/lKgvAcbIn/Tyu\n' \
-                            'RKThtUdPgxNnqDUyxnb3OofMF3gB8ePTu+jZpd3zrlEuxdl40ByATCSyOgR6DHMt\n' \
-                            'SDd+joypnOHFAeSM+V0AaTelXSCK9OAWSAp5e6S76a6lRx+D5Xl3hBedBI0tX59h\n' \
-                            'tEYNEGZaRElFU79WcEF0cH+ZW0+jJ95xE3thZffRz6QI6yF63m8aC9l9bbdJS2zg\n' \
-                            'Yv8W+lCZi//ODeOBUugr++z9uj+vGk47JDSpV0n4JOun3ALUDJ0gqmcS\n' \
-                            '-----END CERTIFICATE-----'
+CONST_CUSTOM_CA_TEST_CERT = (
+    "-----BEGIN CERTIFICATE-----\n"
+    "MIICljCCAX4CCQC9zUAgqqqrWzANBgkqhkiG9w0BAQsFADANMQswCQYDVQQGEwJQ\n"
+    "TDAeFw0yMjA5MTQwNjIzMjdaFw0yMjA5MTUwNjIzMjdaMA0xCzAJBgNVBAYTAlBM\n"
+    "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAopKNIIbvvcPCw9fc4KLX\n"
+    "KDtRZobp5L+/1hCN+3OGhk5NvSTpSUrFifxqc0o3IF7YkO3K1n2jAvCMXO16Bf9b\n"
+    "OAR7VkCrwGFVkXNjM4wvXAX8CNNvjqd1zDPXSKdE7Wd8k3fTzx6nGUM0UgljIPhH\n"
+    "yh4a4Zujd5Ig2P/ZSX0pGJm47JTtMu7MDFHVM5wRWcCrN/H0TCYPIvEOs0B8AZxc\n"
+    "p3TF7A6veT5U9pVhQ3Xl9JN6LvvLqPxG3ea10rdv9DYzaiXmSY3ujI3Ri1Q11uWC\n"
+    "dtrFIpFu5cHW2OBW+jBXxL0v8xQmkxTLik4BR/PLCl30wxKQNsq3pjDgu0mutKuu\n"
+    "5wIDAQABMA0GCSqGSIb3DQEBCwUAA4IBAQAVEAIs/hLwTVCwpEXdoXR24LelNNuB\n"
+    "/8ptK6lyjE11XwfMN3yy7F2oB1lrA4rI3j9obpDsHDJBNB13bi/lKgvAcbIn/Tyu\n"
+    "RKThtUdPgxNnqDUyxnb3OofMF3gB8ePTu+jZpd3zrlEuxdl40ByATCSyOgR6DHMt\n"
+    "SDd+joypnOHFAeSM+V0AaTelXSCK9OAWSAp5e6S76a6lRx+D5Xl3hBedBI0tX59h\n"
+    "tEYNEGZaRElFU79WcEF0cH+ZW0+jJ95xE3thZffRz6QI6yF63m8aC9l9bbdJS2zg\n"
+    "Yv8W+lCZi//ODeOBUugr++z9uj+vGk47JDSpV0n4JOun3ALUDJ0gqmcS\n"
+    "-----END CERTIFICATE-----"
+)
 
 # consts for maintenance configuration schedule type
 CONST_DAILY_MAINTENANCE_SCHEDULE = "Daily"

src/aks-preview/azext_aks_preview/_format.py

@@ -136,28 +136,6 @@ def find_preview_versions(versions_bag):
     return parsed.search(result, Options(dict_cls=OrderedDict, custom_functions=_custom_functions(preview)))
 
 
-def aks_versions_table_format(result):
-    """Format get-versions results as a summary for display with "-o table"."""
-
-    # get preview orchestrator version
-    preview = {}
-
-    def find_preview_versions():
-        for orchestrator in result.get('orchestrators', []):
-            if orchestrator.get('isPreview', False):
-                preview[orchestrator['orchestratorVersion']] = True
-    find_preview_versions()
-
-    parsed = compile_jmes("""orchestrators[].{
-        kubernetesVersion: orchestratorVersion | set_preview(@),
-        upgrades: upgrades[].orchestratorVersion || [`None available`] | sort_versions(@) | set_preview_array(@) | join(`, `, @)
-    }""")
-    # use ordered dicts so headers are predictable
-    results = parsed.search(result, Options(
-        dict_cls=OrderedDict, custom_functions=_custom_functions(preview)))
-    return sorted(results, key=lambda x: version_to_tuple(x.get('kubernetesVersion')), reverse=True)
-
-
 def version_to_tuple(version):
     """Removes preview suffix"""
     if version.endswith('(preview)'):
@@ -181,7 +159,7 @@ def _custom_functions(preview_versions):
     class CustomFunctions(functions.Functions):  # pylint: disable=too-few-public-methods
 
         @ functions.signature({'types': ['array']})
-        def _func_sort_versions(self, versions):  # pylint: disable=no-self-use
+        def _func_sort_versions(self, versions):
             """Custom JMESPath `sort_versions` function that sorts an array of strings as software versions"""
             try:
                 return sorted(versions, key=version_to_tuple)
@@ -196,26 +174,26 @@ def _func_set_preview_array(self, versions):
                 for i, _ in enumerate(versions):
                     versions[i] = self._func_set_preview(versions[i])
                 return versions
-            except(TypeError, ValueError):
+            except (TypeError, ValueError):
                 return versions
 
         @ functions.signature({'types': ['string']})
-        def _func_set_preview(self, version):  # pylint: disable=no-self-use
+        def _func_set_preview(self, version):
             """Custom JMESPath `set_preview` function that suffixes preview version"""
             try:
                 if preview_versions.get(version, False):
                     return version + '(preview)'
                 return version
-            except(TypeError, ValueError):
+            except (TypeError, ValueError):
                 return version
 
         @ functions.signature({'types': ['object']})
-        def _func_pprint_labels(self, labels):  # pylint: disable=no-self-use
+        def _func_pprint_labels(self, labels):
             """Custom JMESPath `pprint_labels` function that pretty print labels"""
             if not labels:
                 return ''
             return ' '.join([
-                '{}={}'.format(k, labels[k])
+                f'{k}={labels[k]}'
                 for k in sorted(labels.keys())
             ])
 

src/aks-preview/azext_aks_preview/_help.py

@@ -4,6 +4,7 @@
 # Licensed under the MIT License. See License.txt in the project root for license information.
 # --------------------------------------------------------------------------------------------
 
+# pylint: disable=too-many-lines
 import os.path
 
 from knack.help_files import helps
@@ -14,7 +15,7 @@
     '$HOME', '.azure', 'aksServicePrincipal.json')
 
 # AKS command help
-helps['aks create'] = """
+helps['aks create'] = f"""
     type: command
     short-summary: Create a new managed Kubernetes cluster.
     parameters:
@@ -25,7 +26,7 @@
           type: string
           short-summary: Service principal used for authentication to Azure APIs.
           long-summary:  If not specified, a new service principal is created and cached at
-                         {sp_cache} to be used by subsequent `az aks` commands.
+                         {AKS_SERVICE_PRINCIPAL_CACHE} to be used by subsequent `az aks` commands.
         - name: --skip-subnet-role-assignment
           type: bool
           short-summary: Skip role assignment for subnet (advanced networking).
@@ -656,7 +657,7 @@
         - name: Create a kubernetes cluster with Azure Monitor Metrics enabled.
           text: az aks create -g MyResourceGroup -n MyManagedCluster --enable-azuremonitormetrics
 
-""".format(sp_cache=AKS_SERVICE_PRINCIPAL_CACHE)
+"""
 
 helps['aks scale'] = """
     type: command