How does pybind11 methods end up calling functions from the shared library?

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I can make as much out as its build system generates a shared object, and also a Python module as a proxy to that shared object. But how does the Python runtime end up doing a dlopen of the generated shared object and bind Python method calls on to corresponding functions in the shared library?

I also found a reference in Python's import system about shared libraries, but nothing beyond that. Does CPython treat .so files in the module path as Python modules?



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