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- # coding=utf-8
- #
- # This file is part of Hypothesis, which may be found at
- # https://github.com/HypothesisWorks/hypothesis-python
- #
- # Most of this work is copyright (C) 2013-2018 David R. MacIver
- # (david@drmaciver.com), but it contains contributions by others. See
- # CONTRIBUTING.rst for a full list of people who may hold copyright, and
- # consult the git log if you need to determine who owns an individual
- # contribution.
- #
- # This Source Code Form is subject to the terms of the Mozilla Public License,
- # v. 2.0. If a copy of the MPL was not distributed with this file, You can
- # obtain one at http://mozilla.org/MPL/2.0/.
- #
- # END HEADER
- from __future__ import division, print_function, absolute_import
- class lazyformat(object):
- """A format string that isn't evaluated until it's needed."""
- def __init__(self, format_string, *args):
- self.__format_string = format_string
- self.__args = args
- def __str__(self):
- return self.__format_string % self.__args
- def __eq__(self, other):
- return (
- isinstance(other, lazyformat) and
- self.__format_string == other.__format_string and
- self.__args == other.__args
- )
- def __ne__(self, other):
- return not self.__eq__(other)
- def __hash__(self):
- return hash(self.__format_string)
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