chore: import upstream snapshot with attribution

tools/Polygraphy/polygraphy/exception/exception.py

@@ -0,0 +1,52 @@
+#
+# SPDX-FileCopyrightText: Copyright (c) 1993-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License 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.
+#
+
+from polygraphy import mod
+
+
+# Do not raise this exception manually. Instead, use G_LOGGER.critical().
+@mod.export()
+class PolygraphyException(Exception):
+    """
+    An exception raised by Polygraphy.
+    """
+
+    pass
+
+
+# Do not raise this exception manually. Instead, use G_LOGGER.internal_error().
+@mod.export()
+class PolygraphyInternalException(Exception):
+    """
+    An exception raised when a Polygraphy internal check is violated.
+    Polygraphy internal checks can be enabled by setting the ``POLYGRAPHY_INTERNAL_CORRECTNESS_CHECKS``
+    environment variable to ``1``.
+    This is *not* a child class of PolygraphyException because it
+    indicates a bug in Polygraphy itself.
+    """
+
+    pass
+
+
+# Do not raise this exception manually. Instead, use G_LOGGER.critical(..., ExceptionType=DataTypeConversionException).
+@mod.export()
+class DataTypeConversionException(PolygraphyException):
+    """
+    An exception during conversion to or from a Polygraphy DataType.
+    """
+
+    pass