gget

negmas.generics.gget(x, _key, default=None)

Get an item from an IterableMapping

Parameters:

• x (Union[Callable[[Any], Any], Mapping, Sequence]) – the generic mapping

• _key (Any) – key (must be immutable)

• default – default value if no value attached with the key is found

Return type:

Any

Examples

Example with a list

>>> [gget([10, 20, 30], _) for _ in (0, 2,1, -1, 4)]
[10, 30, 20, 30, None]

Example with a dictionary

>>> [gget({'a':10, 'b':20, 'c':30}, _) for _ in ('a', 'c','b', -1, 'd')]
[10, 30, 20, None, None]

Example with a tuple

>>> [gget((10, 20, 30), _) for _ in (0, 2,1, -1, 4)]
[10, 30, 20, 30, None]

Example with a generator

>>> [gget(range(10, 40, 10), _) for _ in (0, 2,1, -1, 4)]
[10, 30, 20, 30, None]

Returns: