edgegraph.builder.explicit.link_from_to

edgegraph.builder.explicit.link_from_to(v1, lnktype, v2, dontdup=False)

Create a link of type lnktype from v1 to v2.

This function instantiates a new link type (a subclass of TwoEndedLink. It then associates both given vertices to the link instance.

See also

The link_directed() and link_undirected() functions create DirectedEdge and UnDirectedEdge respectively in a similar manner to this function.

Parameters:

• v1 (Vertex) – One end of the link.

• lnktype (type) – The class of the link.

• v2 (Vertex) – The other end of the link.

• dontdup (bool) – If set to True, performs a check for any already-existing links between v1 and v2. If any are found (of any type, directed or undirected), no new link is created, but the already-existing one is returned silently.

Returns:

The link instance.

Return type:

An instance of the param lnktype.