sliceable-dict
A simple dictionary that support slicing and multiple key selection.
Installation and requirements
sliceable-dict requires Python 3.7+ to run and can be installed by running
pip install sliceable-dictUsage
The provided class SliceDict is an extended dictionary. It behaves exactly as the
buildin dict for single (hashable) keys, but adds some additional features.
Namely, getting and setting multiple keys at once, slicing with integers and boolean
selection.
An example usage:
>>> from sliceable_dict import SliceDict
>>> d = SliceDict(zero=0, one=1)
>>> d
{'zero': 0, 'one': 1,}
# multi-key support
>>> d[['two', 'three']] = 2, 3
>>> d[['one', 'three']]
{'one': 1, 'three': 3}
# slicing
>>> d[:]
{'zero': 0, 'one': 1, 'two': 2, 'three': 3}
>>> d[1:-1]
{'one': 1, 'two': 2}
>>> d[1::2]
{'one': 1, 'three': 3}
# boolean selection
>>> bool_list = [True, False, True, False]
>>> selection = d[bool_list]
>>> selection
{'zero': 0, 'two': 2}
# views as for buildin dict
>>> kv = selection.keys()
>>> kv
KeysView({'zero': 0, 'two': 2})
>>> list(kv)
['zero', 'two']
>>> vv = selection.values()
>>> vv
ValuesView({'zero': 0, 'two': 2})
>>> list(vv)
[0, 2]
