Diagram.face_attribute

Diagram.face_attribute(key, name, value=None)

Get or set an attribute of a face.

Parameters:

keyint

The face identifier.

namestr

The name of the attribute.

valueobject, optional

The value of the attribute.

Returns:

object | None

The value of the attribute, or None when the function is used as a “setter”.

Raises:

KeyError

If the face does not exist.

See also

face_attributes(), faces_attribute(), faces_attributes()

unset_face_attribute()

edge_attribute()

vertex_attribute()