py2store.utils.sliceable

utils to add sliceable functionality to stores

class py2store.utils.sliceable.iSliceStore(store)

Wraps a store to make a reader that acts as if the store was a list (with integer keys, and that can be sliced). I say “list”, but it should be noted that the behavior is more that of range, that outputs an element of the list when keying with an integer, but returns an iterable object (a range) if sliced.

Here, a map object is returned when the sliceable store is sliced.

>>> s = {'foo': 'bar', 'hello': 'world', 'alice': 'bob'}
>>> sliceable_s = iSliceStore(s)
>>> sliceable_s[1]
'world'
>>> list(sliceable_s[0:2])
['bar', 'world']
>>> list(sliceable_s[-2:])
['world', 'bob']
>>> list(sliceable_s[:-1])
['bar', 'world']