Method bunch_iter

easygraph/classes/directed_graph.py:382–399

(nlist, adj)

        else:  # if nbunch is a sequence of nodes

            def bunch_iter(nlist, adj):
                try:
                    for n in nlist:
                        if n in adj:
                            yield n
                except TypeError as err:
                    exc, message = err, err.args[0]
                    # capture error for non-sequence/iterator nbunch.
                    if "iter" in message:
                        exc = EasyGraphError(
                            "nbunch is not a node or a sequence of nodes."
                        )
                    # capture error for unhashable node.
                    if "hashable" in message:
                        exc = EasyGraphError(
                            f"Node {n} in sequence nbunch is not a valid node."
                        )
                    raise exc

            bunch = bunch_iter(nbunch, self._adj)
        return bunch