Port azure_rm_common.py to py3 syntax (#15880)

Since the rest of the file already use a non 2.4 syntax
(such as format), I didn't bother using the 2.4 syntax for
exceptions.

lib/ansible/module_utils/azure_rm_common.py

@@ -88,7 +88,7 @@ try:
     from azure.mgmt.compute.compute_management_client import ComputeManagementClient,\
                                                              ComputeManagementClientConfiguration
     from azure.storage.cloudstorageaccount import CloudStorageAccount
-except ImportError, exc:
+except ImportError as exc:
     HAS_AZURE_EXC = exc
     HAS_AZURE = False
 
@@ -323,7 +323,7 @@ class AzureRMModuleBase(object):
             return self.rm_client.resource_groups.get(resource_group)
         except CloudError:
             self.fail("Parameter error: resource group {0} not found".format(resource_group))
-        except Exception, exc:
+        except Exception as exc:
             self.fail("Error retrieving resource group {0} - {1}".format(resource_group, str(exc)))
 
     def _get_profile(self, profile="default"):
@@ -331,7 +331,7 @@ class AzureRMModuleBase(object):
         try:
             config = ConfigParser.ConfigParser()
             config.read(path)
-        except Exception, exc:
+        except Exception as exc:
             self.fail("Failed to access {0}. Check that the file exists and you have read "
                       "access. {1}".format(path, str(exc)))
         credentials = dict()
@@ -418,7 +418,7 @@ class AzureRMModuleBase(object):
                 self.log("Waiting for {0} sec".format(delay))
                 poller.wait(timeout=delay)
             return poller.result()
-        except Exception, exc:
+        except Exception as exc:
             self.log(str(exc))
             raise
 
@@ -465,13 +465,13 @@ class AzureRMModuleBase(object):
             account_keys = self.storage_client.storage_accounts.list_keys(resource_group_name, storage_account_name)
             keys['key1'] = account_keys.key1
             keys['key2'] = account_keys.key2
-        except Exception, exc:
+        except Exception as exc:
             self.fail("Error getting keys for account {0} - {1}".format(storage_account_name, str(exc)))
 
         try:
             self.log('Create blob service')
             return CloudStorageAccount(storage_account_name, keys['key1']).create_block_blob_service()
-        except Exception, exc:
+        except Exception as exc:
             self.fail("Error creating blob service client for storage account {0} - {1}".format(storage_account_name,
                                                                                                 str(exc)))
 
@@ -508,7 +508,7 @@ class AzureRMModuleBase(object):
         self.log('Creating default public IP {0}'.format(public_ip_name))
         try:
             poller = self.network_client.public_ip_addresses.create_or_update(resource_group, public_ip_name, params)
-        except Exception, exc:
+        except Exception as exc:
             self.fail("Error creating {0} - {1}".format(public_ip_name, str(exc)))
 
         return self.get_poller_result(poller)
@@ -578,7 +578,7 @@ class AzureRMModuleBase(object):
             poller = self.network_client.network_security_groups.create_or_update(resource_group,
                                                                                   security_group_name,
                                                                                   parameters)
-        except Exception, exc:
+        except Exception as exc:
             self.fail("Error creating default security rule {0} - {1}".format(security_group_name, str(exc)))
 
         return self.get_poller_result(poller)
@@ -589,7 +589,7 @@ class AzureRMModuleBase(object):
             # time we attempt to use the requested client.
             resource_client = self.rm_client
             resource_client.providers.register(key)
-        except Exception, exc:
+        except Exception as exc:
             self.fail("One-time registration of {0} failed - {1}".format(key, str(exc)))
 
     @property