Module RAII

[dutkalex]

Hi!
I was wondering if the Pybind11 framework provides a solution for module initialization and finalization. My use case is that my module's functions and classes use libraries that have to be initialized and finalized, and I would like to define a piece of code which would be automatically executed right after the module import, and another one right before unloading the module.
I ended up using the following trick which seems to work, but is there a better way?

struct ModuleLifetimeManager
{
    ModuleLifetimeManager(){ MPI_Init(nullptr, nullptr); }
    ~ModuleLifetimeManager(){ MPI_Finalize(); }
};

PYBIND11_MODULE(example, m)
{
    static ModuleLifetimeManager _;
// ...
}