Fix exception syntax for Python 3.x (#2940)

since boto already precludes python2.4, no need to use a common 2.4/3 syntax

lib/ansible/modules/extras/cloud/amazon/cloudwatchevent_rule.py

@@ -128,7 +128,7 @@ class CloudWatchEventRule(object):
         """Returns the existing details of the rule in AWS"""
         try:
             rule_info = self.client.describe_rule(Name=self.name)
-        except botocore.exceptions.ClientError, e:
+        except botocore.exceptions.ClientError as e:
             error_code = e.response.get('Error', {}).get('Code')
             if error_code == 'ResourceNotFoundException':
                 return {}
@@ -176,7 +176,7 @@ class CloudWatchEventRule(object):
         """Lists the existing targets for the rule in AWS"""
         try:
             targets = self.client.list_targets_by_rule(Rule=self.name)
-        except botocore.exceptions.ClientError, e:
+        except botocore.exceptions.ClientError as e:
             error_code = e.response.get('Error', {}).get('Code')
             if error_code == 'ResourceNotFoundException':
                 return []
@@ -356,7 +356,7 @@ def get_cloudwatchevents_client(module):
                           resource='events',
                           region=region, endpoint=ec2_url,
                           **aws_conn_kwargs)
-    except boto3.exception.NoAuthHandlerFound, e:
+    except boto3.exception.NoAuthHandlerFound as e:
         module.fail_json(msg=str(e))
 
 

lib/ansible/modules/extras/cloud/amazon/redshift_subnet_group.py

@@ -128,7 +128,7 @@ def main():
     # Connect to the Redshift endpoint.
     try:
         conn = connect_to_aws(boto.redshift, region, **aws_connect_params)
-    except boto.exception.JSONResponseError, e:
+    except boto.exception.JSONResponseError as e:
         module.fail_json(msg=str(e))
 
     try:
@@ -139,7 +139,7 @@ def main():
         try:
             matching_groups = conn.describe_cluster_subnet_groups(group_name, max_records=100)
             exists = len(matching_groups) > 0
-        except boto.exception.JSONResponseError, e:
+        except boto.exception.JSONResponseError as e:
             if e.body['Error']['Code'] != 'ClusterSubnetGroupNotFoundFault':
             #if e.code != 'ClusterSubnetGroupNotFoundFault':
                 module.fail_json(msg=str(e))
@@ -169,7 +169,7 @@ def main():
 
             changed = True
 
-    except boto.exception.JSONResponseError, e:
+    except boto.exception.JSONResponseError as e:
         module.fail_json(msg=str(e))
 
     module.exit_json(changed=changed, group=group)