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+# Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"). You
+# may not use this file except in compliance with the License. A copy of
+# the License is located at
+#
+# https://aws.amazon.com/apache2.0/
+#
+# or in the "license" file accompanying this file. This file is
+# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
+# ANY KIND, either express or implied. See the License for the specific
+# language governing permissions and limitations under the License.
+import sys
+import os
+import errno
+import socket
+import warnings
+
+from boto3.exceptions import PythonDeprecationWarning
+
+# In python3, socket.error is OSError, which is too general
+# for what we want (i.e FileNotFoundError is a subclass of OSError).
+# In py3 all the socket related errors are in a newly created
+# ConnectionError
+SOCKET_ERROR = ConnectionError
+
+import collections.abc as collections_abc
+
+
+if sys.platform.startswith('win'):
+ def rename_file(current_filename, new_filename):
+ try:
+ os.remove(new_filename)
+ except OSError as e:
+ if not e.errno == errno.ENOENT:
+ # We only want to a ignore trying to remove
+ # a file that does not exist. If it fails
+ # for any other reason we should be propagating
+ # that exception.
+ raise
+ os.rename(current_filename, new_filename)
+else:
+ rename_file = os.rename
+
+
+def filter_python_deprecation_warnings():
+ """
+ Invoking this filter acknowledges your runtime will soon be deprecated
+ at which time you will stop receiving all updates to your client.
+ """
+ warnings.filterwarnings(
+ 'ignore',
+ message=".*Boto3 will no longer support Python.*",
+ category=PythonDeprecationWarning,
+ module=r".*boto3\.compat"
+ )
+
+
+def _warn_deprecated_python():
+ """Use this template for future deprecation campaigns as needed."""
+ py_37_params = {
+ 'date': 'December 13, 2023',
+ 'blog_link': (
+ 'https://aws.amazon.com/blogs/developer/'
+ 'python-support-policy-updates-for-aws-sdks-and-tools/'
+ )
+ }
+ deprecated_versions = {
+ # Example template for future deprecations
+ (3, 7): py_37_params,
+ }
+ py_version = sys.version_info[:2]
+
+ if py_version in deprecated_versions:
+ params = deprecated_versions[py_version]
+ warning = (
+ "Boto3 will no longer support Python {}.{} "
+ "starting {}. To continue receiving service updates, "
+ "bug fixes, and security updates please upgrade to Python 3.8 or "
+ "later. More information can be found here: {}"
+ ).format(py_version[0], py_version[1], params['date'], params['blog_link'])
+ warnings.warn(warning, PythonDeprecationWarning)