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cdk-env/lib/python3.12/site-packages/boto3/compat.py

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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
+
+_APPEND_MODE_CHAR = 'a'
+
+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)
+
+
+def is_append_mode(fileobj):
+    return (
+        hasattr(fileobj, 'mode') and
+        isinstance(fileobj.mode, str) and
+        _APPEND_MODE_CHAR in fileobj.mode
+    )