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Raising warnings from an exception module can result in a rather confusing message: Running command: '/usr/bin/nova-scheduler ' /.../sqlalchemy/enginefacade.py:332: NotSupportedWarning: Configuration option(s) ['use_tpool'] not supported exception.NotSupportedWarning For someone not used to Python's 'warning' infrastructure, this can look worse than it is, as seen at [1]. While this particular warning was resolved in change I4a5f8958c3e, it's possible that a similar warning could be raised for other options. Best to move this out of the 'exception' module and into something more sensible. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1639423 Change-Id: I8e0480fb11123067a111ed6aeda6b47614615645 Signed-off-by: Stephen Finucane <stephenfin@redhat.com>changes/10/611310/1
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# Copyright 2018 Red Hat, Inc. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); you may |
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# not use this file except in compliance with the License. You may obtain |
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# a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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# License for the specific language governing permissions and limitations |
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# under the License. |
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"""Custom warnings.""" |
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class NotSupportedWarning(Warning): |
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"""Warn that an argument or call that was passed is not supported. |
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This subclasses Warning so that it can be filtered as a distinct |
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category. |
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.. seealso:: |
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https://docs.python.org/2/library/warnings.html |
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""" |
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class OsloDBDeprecationWarning(DeprecationWarning): |
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"""Issued per usage of a deprecated API. |
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This subclasses DeprecationWarning so that it can be filtered as a distinct |
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category. |
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.. seealso:: |
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https://docs.python.org/2/library/warnings.html |
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""" |
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