39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
# This file is part of Hypothesis, which may be found at
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# https://github.com/HypothesisWorks/hypothesis/
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#
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# Most of this work is copyright (C) 2013-2021 David R. MacIver
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# (david@drmaciver.com), but it contains contributions by others. See
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# CONTRIBUTING.rst for a full list of people who may hold copyright, and
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# consult the git log if you need to determine who owns an individual
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# contribution.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public License,
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# v. 2.0. If a copy of the MPL was not distributed with this file, You can
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# obtain one at https://mozilla.org/MPL/2.0/.
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#
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# END HEADER
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class lazyformat:
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"""A format string that isn't evaluated until it's needed."""
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def __init__(self, format_string, *args):
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self.__format_string = format_string
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self.__args = args
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def __str__(self):
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return self.__format_string % self.__args
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def __eq__(self, other):
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return (
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isinstance(other, lazyformat)
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and self.__format_string == other.__format_string
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and self.__args == other.__args
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)
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def __ne__(self, other):
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return not self.__eq__(other)
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def __hash__(self):
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return hash(self.__format_string)
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