[C++-sig] map of vectors with indexing suites

[Ralf W. Grosse-Kunstleve]

> Also, I would like to have a nice __repr__ method for the map and the
> vectors but I did not find how to add easily such methods (currently, I
> create a class that inherit the std::map only to add the repr method).

You can simply .def() an unbound function implementing __repr__. The only
requirement is that the first argument of the unbound function is "self".
E.g.

  void foo(your_type const& self);

  class_<your_type>("your_type")
    .def("foo", foo)
  ;

Ralf