FormDiagram.edge_attributes

FormDiagram.edge_attributes(key, names=None, values=None)[source]

Get or set multiple attributes of an edge.

Parameters:

  • key (tuple[hashable, hashable]) – The identifier of the edge.

  • names (list[str], optional) – A list of attribute names.

  • values (list[Any], optional) – A list of attribute values.

Returns:

dict[str, Any] | list[Any] | None – If the parameter names is empty, a dictionary of all attribute name-value pairs of the edge. If the parameter names is not empty, a list of the values corresponding to the provided names. None if the function is used as a “setter”.

Raises:

KeyError – If the edge does not exist.