8.2.3.2.25. get_node

Base.get_node(*node_ids, node_attr=none)

Returns a sub node of a dispatcher.

Parameters:

• node_ids (str) – A sequence of node ids or a single node id. The id order identifies a dispatcher sub-level.

• node_attr (str, None, optional) –

  Output node attr.

  If the searched node does not have this attribute, all its attributes are returned.

  When ‘auto’, returns the “default” attributes of the searched node, which are:

  • for data node: its output, and if not exists, all its attributes.

  • for function and sub-dispatcher nodes: the ‘function’ attribute.

  When ‘description’, returns the “description” of the searched node, searching also in function or sub-dispatcher input/output description.

  When ‘output’, returns the data node output.

  When ‘default_value’, returns the data node default value.

  When ‘value_type’, returns the data node value’s type.

  When None, returns the node attributes.

Returns:

Node attributes and its real path.

Return type:

(T, (str, …))

Example:

Get the sub node output:

>>> dsp.get_node('Sub-dispatcher', 'c')
(4, ('Sub-dispatcher', 'c'))
>>> dsp.get_node('Sub-dispatcher', 'c', node_attr='type')
('data', ('Sub-dispatcher', 'c'))

>>> sub_dsp, sub_dsp_id = dsp.get_node('Sub-dispatcher')