Diagram.vertices_attributes

Diagram.vertices_attributes(names=None, values=None, keys=None)

Get or set multiple attributes of multiple vertices.

Parameters

• names (list of str, optional) – The names of the attribute. Default is None.

• values (list of obj, optional) – The values of the attributes. Default is None.

• keys (list of int, optional) – A list of vertex identifiers.

Returns

list or None – If the parameter names is None, the function returns a list containing an attribute dict per vertex. If the parameter names is not None, the function returns a list containing a list of attribute values per vertex corresponding to the provided attribute names. The function returns None if it is used as a “setter”.

Raises

KeyError – If any of the vertices does not exist.