get_nested¶

bpod_core.misc.get_nested(d, keys, default=None) ¶

Retrieve a value from a nested dict using a Sequence of keys.

Parameters:

d (MutableMapping) – The dictionary from which to get a value.
keys (Sequence) – A sequence of keys representing the path to the desired value.
default (Any, default: None) – The value to return if the path does not exist.

Returns:

The value at the nested path, or default if any key in the path is missing.

Return type:

Any

Examples

>>> from bpod_core.misc import get_nested
>>> dictionary = {'a': {'b': {'c': 42}}}
>>> get_nested(dictionary, ['a', 'b', 'c'])
42

>>> get_nested(dictionary, ['a', 'x'], default='missing')
'missing'