Should this convertion work ? 

std::unordered_set<std::size_t> tgt = unordered_set (std::initializer_list<size_t> boost::python::stl_input_iterator<size_t>(target_list))

If so, is that efficient ? 

Best,

F.

2015-04-15 9:03 GMT+02:00 Tiago Peixoto [via Main discussion list for the graph-tool project] <[hidden email]>:

On 15.04.2015 01:14, François Kawala wrote:
> About your comment on line 196 (which probably also applies to lines
> 238 and 274), what is proper way to receive a set from python ?

You have to expose the class to Python using boost::python:

    http://www.boost.org/doc/libs/1_57_0/libs/python/doc/tutorial/doc/html/python/exposing.html

However, in this case a much more straightforward approach is to receive
any python iterable (a generic boost::python::object in C++), and
convert it to an unordered_set<> in C++, before the algorithm is run.

Best,
Tiago

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