Way to get vertex ids that belong to a group

After running an inference method such as:
graph_tool.inference.minimize_blockmodel_dl()
I get back a graph_tool.inference.BlockState,
which provides a PropertyMap on the vertices
which i can use to tell which group a vertex is in.
However, if i need to find out all the other members
of the same group, (suppose i need to find out who/what
else is in the same group as a particular vertex, is there
a way to list the groups members other than looping though all
vertices and querying their group in the Propertymap?
As a bonus, i have a bit of a background in scientific application
support as a scientist+sysadmin, so here are Fedora 23/24
graph_tool packages for the Fedora users out there, made with love using the opensuse OBS.
http://download.opensuse.org/repositories/home:/theusprom1/Fedora_23/
http://download.opensuse.org/repositories/home:/theusprom1/Fedora_24/
For more info look here:
https://build.opensuse.org/package/show/home:theusprom1/graph-tool
I second your advise to use the prebuilt packages that the project has already provided,
the compile time resources needed are non trivial :frowning:https://build.opensuse.org/package/statistics/home:theusprom1/graph-tool?arch=x86_64&repository=Fedora_24).
I have used these packages (im just getting started though), so YMMV.

Best.
Theos.

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