How to pass arguments by reference from c++ to python with pybind11?

[leonleeann]

I'm using PyBind11 to run a Python interpreter, and I need to call a Python function in c++ with some pointer arguments.

It looks like that a argument being passed to Python side should be freed normally by the Python interpreter, instead of the c++ main program.
But this time my argument is a pointer to a static object, it should NOT be freed by anyone.

I know that pybind11::return_value_policy::reference can be used to prevent a returning result from being freed, but it is for a returning object, not for arguments.

How to code such a binding/calling?

[steve-lorimer]

Did you ever find an answer to this?

[ManuelSchneid3r]

Encountered this issue as well. Passing a pointer works well but references throw an exception. Any progress here?