Using inside a Qt plugin.

[Gliese852]

Let's say I want to use PythonQt inside a plugin, and import dlib in a Python script. A plugin is actually a shared object loaded via dlopen (linux).
Unfortunately in my case I cannot influence which flags are passed to dlopen when loading my plugin, in the debugger I saw that this is RTLD_NODELETE | RTLD_LAZY. If I understand correctly, since there is no RTLD_GLOBAL flag, all loaded libraries from my plugin will not see any symbols, including those from my plugin.

When a Python script imports dlib, it dlopens _dlib_pybind11.cpython-311.so and fails because the library cannot see the symbol PyInstanceMethod_Type from libpython3.11.so, although this symbol is clearly available inside my plugin, since this library is dynamically linked.

I managed to do something - if you specify this object (_dlib_pybind11.cpython-311.so) during compilation to the linker, and then explicitly use any symbol from it, import dlib occurs successfully. But this is a hack that most likely won't be possible to use.

Is the situation really hopeless (and no Python package containing DSO can be used in my situation), or am I missing something?