Expand wildcard imports and add boilerplate

More amazon modules with no open PRs.

lib/ansible/modules/cloud/amazon/s3_lifecycle.py

@@ -1,17 +1,10 @@
 #!/usr/bin/python
-#
-# This is a free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This Ansible library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this library.  If not, see <http://www.gnu.org/licenses/>.
+# Copyright: Ansible Project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
 
 ANSIBLE_METADATA = {'metadata_version': '1.0',
                     'status': ['stableinterface'],
@@ -165,7 +158,7 @@ try:
     import boto.ec2
     from boto.s3.connection import OrdinaryCallingFormat, Location
     from boto.s3.lifecycle import Lifecycle, Rule, Expiration, Transition
-    from boto.exception import BotoServerError, S3CreateError, S3ResponseError
+    from boto.exception import BotoServerError, S3ResponseError
     HAS_BOTO = True
 except ImportError:
     HAS_BOTO = False
@@ -173,6 +166,7 @@ except ImportError:
 from ansible.module_utils.basic import AnsibleModule
 from ansible.module_utils.ec2 import AnsibleAWSError, ec2_argument_spec, get_aws_connection_info
 
+
 def create_lifecycle_rule(connection, module):
 
     name = module.params.get("name")