Am 24.02.20 um 17:15 schrieb admweiss:
> When I create a graph like this:
>
> self.graph = Graph(directed=True)
> self.is_on = self.graph.new_vertex_property("boolean")
>
> and want to use it in another class method:
>
> self.is_on.set_value(False)
>
> I get the error:
> libcore.set_vertex_property(g._Graph__graph, _prop("v", g, self), val)
> AttributeError: 'NoneType' object has no attribute '_Graph__graph'
This seems like a bug somewhere else in your program, as the following
works just fine:
graph = Graph(directed=True)
graph.add_vertex(100)
is_on = graph.new_vertex_property("boolean")
is_on.set_value(False)
Please remember to provide *minimal* and *self-contained* code that
shows the problem, not code snippets or vague descriptions, as those
cannot be reproduced.
Best,
Tiago
--
Tiago de Paula Peixoto <[email protected]>
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