53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
# Copyright (c) 2013 Paul Tagliamonte <paultag@debian.org>
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# Copyright (c) 2013 Julien Danjou <julien@danjou.info>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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# DEALINGS IN THE SOFTWARE.
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import contextlib
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import sys
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if sys.version_info[0] >= 3:
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str_type = str
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else:
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str_type = unicode
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@contextlib.contextmanager
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def temporary_attribute_value(obj, attribute, value):
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"""Temporarily switch an object attribute value to another value."""
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original_value = getattr(obj, attribute)
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setattr(obj, attribute, value)
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try:
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yield
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except Exception:
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pass
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setattr(obj, attribute, original_value)
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def flatten_literal_list(entry):
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for e in entry:
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if type(e) == list:
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for x in flatten_literal_list(e):
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yield x # needs more yield-from
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else:
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yield e
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