Support attribute "consider_empty_community" of leidenalg.Optimiser

[Gilquin]

Hello,

Could it be possible to add support for the attribute consider_empty_community of leidenalg.Optimiser ?
A potential use case of this attribute is to better control the maximum number of clusters discovered, see the corresponding issue #89.

Digging through the code, I think it only amounts to add the following lines in leiden::find_paritition, after L109:

  if(py_has_attr(self.optimiser, "consider_empty_community")){
    py_set_attr(self.optimiser, "consider_empty_community", r_to_py(as.logical(empty_community)))
  }

and add an empty_community argument to each parent function.

[Gilquin]

EDIT: Please ignore my suggestion, it doesn't work because the optimiser is instantiated internally (at L84) when leidenalg$find_partition is called.
Adding this feature would require a change to the leidenalg.find_partition function.

I'm closing this issue. Sorry for the noise.