mirror of https://github.com/jab/bidict.git
23 lines
887 B
Python
23 lines
887 B
Python
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import bidict, sortedcontainers, sortedcollections, collections
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class sortedbidict2(bidict.OrderedMapping, bidict.bidict):
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_fwd_class = sortedcontainers.SortedDict
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_inv_class = sortedcollections.ValueSortedDict
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elemByAtomicNum = sortedbidict2({1: 'hydrogen', 2: 'helium', 3: 'lithium'})
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elemByAtomicNum.update({4: 'beryllium'})
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# order is preserved correctly when passing .inv back into constructor:
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atomicNumByElem = sortedbidict2(elemByAtomicNum.inv)
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# attrs not defined by bidict are passed through to the _fwd SortedDict:
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elemByAtomicNum.peekitem(index=0)
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elemByAtomicNum.popitem(last=False)
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elemByAtomicNum.inv.popitem(last=True)
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elemByAtomicNum == {2: 'helium', 3: 'lithium'}
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elemByAtomicNum == {3: 'lithium', 2: 'helium'}
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bidict.OrderedMapping.__eq__(elemByAtomicNum, {3: 'lithium', 2: 'helium'})
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collections.Mapping.__eq__(elemByAtomicNum, {3: 'lithium', 2: 'helium'})
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