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54 lines
2.3 KiB
Python
54 lines
2.3 KiB
Python
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###
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# Copyright (c) 2005, Jeremiah Fincher
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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class Object(object):
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def __ne__(self, other):
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return not self == other
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class TupleSubclass(type):
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def __new__(cls, name, bases, dict):
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assert tuple in bases
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assert '__attrs__' in dict
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for (i, attr) in enumerate(dict['__attrs__']):
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dict[attr] = property(lambda self, i=i: self[i])
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del dict['__attrs__']
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# XXX Check the length of the iterable given.
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return super(TupleSubclass, cls).__new__(cls, name, bases, dict)
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class Acquire(object):
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# Mixin for acquiring attributes from parents.
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def __init__(self, attr):
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self.__parent = attr
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def __getattr__(self, attr):
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return getattr(self.__parent, attr)
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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