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venv/lib/python3.12/site-packages/bidict/_exc.py

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+# Copyright 2009-2024 Joshua Bronson. All rights reserved.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+"""Provide all bidict exceptions."""
+
+from __future__ import annotations
+
+
+class BidictException(Exception):
+    """Base class for bidict exceptions."""
+
+
+class DuplicationError(BidictException):
+    """Base class for exceptions raised when uniqueness is violated
+    as per the :attr:`~bidict.RAISE` :class:`~bidict.OnDupAction`.
+    """
+
+
+class KeyDuplicationError(DuplicationError):
+    """Raised when a given key is not unique."""
+
+
+class ValueDuplicationError(DuplicationError):
+    """Raised when a given value is not unique."""
+
+
+class KeyAndValueDuplicationError(KeyDuplicationError, ValueDuplicationError):
+    """Raised when a given item's key and value are not unique.
+
+    That is, its key duplicates that of another item,
+    and its value duplicates that of a different other item.
+    """