BFSVisitor initialize_vertex() not invoked
Are you running the latest
Do you observe the problem with the current git version?
I am afraid I haven't had a chance to build this, but I have replicated the bug on another device.
Did you compile
I installed graph-tool from the AUR.
BFSVisitor's initialize_vertex() method is not being invoked on vertices. The program below terminates, instead of exiting with an error inside
import graph_tool.all as gt import sys class InitializeVisitor(gt.BFSVisitor): def initialize_vertex(self, u): print('This method appears to be bugged.') print('This code will terminate the program if it is reached.') sys.exit(1) def discover_vertex(self, u): print('This other method works fine.') graph = gt.Graph() a = graph.add_vertex() b = graph.add_vertex() c = graph.add_vertex() d = graph.add_vertex() graph.add_edge(a, b) graph.add_edge(c, d) graph.add_edge(a, c) gt.bfs_search(graph, a, InitializeVisitor()) print('This should not be reached.')
This other method works fine. This other method works fine. This other method works fine. This other method works fine. This should not be reached.
System Information (both devices):
Operating System: Manjaro Linux Qonos 21.2.2 Python version: 3.10.1 Boost version: 1.78.0-1 Compiler version: g++ (GCC) 11.1.0