a6decbb313
Changed license to AGPLv3, "finished" console command framework (for now?), and added initial db/lib/pyramid/wx subpackages - though those are not yet well tested.
55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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################################################################################
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#
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# edbob -- Pythonic Software Framework
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# Copyright © 2010-2012 Lance Edgar
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#
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# This file is part of edbob.
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#
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# edbob is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, either version 3 of the License, or (at your option)
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# any later version.
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#
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# edbob is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
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# more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with edbob. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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"""
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``edbob.util`` -- Utilities
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"""
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import edbob
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class requires_impl(edbob.Object):
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"""
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Decorator for properties or methods defined on parent classes only for
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documentation's sake, but which in fact rely on the derived class entirely
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for implementation.
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This merely adds a helpful message to the ``NotImplementedError`` exception
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which will be raised.
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"""
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is_property = False
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def __call__(self, func):
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if self.is_property:
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message = "Please define the %s.%s attribute"
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else:
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message = "Please implement the %s.%s() method"
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def wrapped(self, *args, **kwargs):
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msg = message % (self.__class__.__name__, func.__name__)
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msg += " (within the %s module)" % self.__class__.__module__
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raise NotImplementedError(msg)
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return wrapped
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