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cdk-env/lib/python3.12/site-packages/s3transfer/compat.py

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+# Copyright 2016 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
+#
+# http://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 errno
+import inspect
+import os
+import socket
+import sys
+
+from botocore.compat import six
+
+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 accepts_kwargs(func):
+    return inspect.getfullargspec(func)[2]
+
+
+# In python 3, socket.error is OSError, which is too general
+# for what we want (i.e FileNotFoundError is a subclass of OSError).
+# In python 3, all the socket related errors are in a newly created
+# ConnectionError.
+SOCKET_ERROR = ConnectionError
+MAXINT = None
+
+
+def seekable(fileobj):
+    """Backwards compat function to determine if a fileobj is seekable
+
+    :param fileobj: The file-like object to determine if seekable
+
+    :returns: True, if seekable. False, otherwise.
+    """
+    # If the fileobj has a seekable attr, try calling the seekable()
+    # method on it.
+    if hasattr(fileobj, 'seekable'):
+        return fileobj.seekable()
+    # If there is no seekable attr, check if the object can be seeked
+    # or telled. If it can, try to seek to the current position.
+    elif hasattr(fileobj, 'seek') and hasattr(fileobj, 'tell'):
+        try:
+            fileobj.seek(0, 1)
+            return True
+        except OSError:
+            # If an io related error was thrown then it is not seekable.
+            return False
+    # Else, the fileobj is not seekable
+    return False
+
+
+def readable(fileobj):
+    """Determines whether or not a file-like object is readable.
+
+    :param fileobj: The file-like object to determine if readable
+
+    :returns: True, if readable. False otherwise.
+    """
+    if hasattr(fileobj, 'readable'):
+        return fileobj.readable()
+
+    return hasattr(fileobj, 'read')
+
+
+def fallocate(fileobj, size):
+    if hasattr(os, 'posix_fallocate'):
+        os.posix_fallocate(fileobj.fileno(), 0, size)
+    else:
+        fileobj.truncate(size)
+
+
+# Import at end of file to avoid circular dependencies
+from multiprocessing.managers import BaseManager  # noqa: F401,E402