mirror of https://github.com/jab/bidict.git
27 lines
635 B
ReStructuredText
27 lines
635 B
ReStructuredText
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.. _inverted:
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inverted
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========
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The :class:`bidict.inverted` iterator
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(inspired by the :func:`reversed` built-in)
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is provided to help with getting the inverse
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of any kind of object that can be inverted.
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Pass in a mapping to get the inverse mapping::
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>>> dict(inverted({1: 'one'}))
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{'one': 1}
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an iterable of pairs to get the pairs' inverses::
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>>> list(inverted([(1, 'one'), (2, 'two')]))
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[('one': 1), ('two', 2)]
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>>> list(inverted((i*i, i) for i in range(2, 5)))
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[(2, 4), (3, 9), (4, 16)]
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or any object implementing an ``__inverted__`` method::
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>>> dict(inverted(bidict({1: 'one'})))
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{'one': 1}
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