On Wednesday, 12 June 2024 at 18:58:49 UTC, evilrat wrote:
the only problem is that it seems to leak a lot PydObjects so i have to manually free them, even scope doesn't helps with that which is sad.
Oh I see. I did some experiments with nimpy and pybind11. Both experiments were resulted in slower than ctypes dll calling method. That's why I didn't take much interest in binding with Python C API. Even Cython is slower compare to ctypes. But it can be used when we call the dll in Cython and call the cython code from python. But then you will have to face some other obstacles. In my case, callback functions are the reason. When using a dll in cython, you need to pass a cython function as callback and inside that func, you need to convert everything into pyobject back and forth. That will take time. Imagine that you want to do some heavy lifting in a mouse move event ? No one will be happy with at snail's pace. But yeah, Cython is a nice language and we can create an entire gui lib in Cython but the execution speed is 2.5X slower than my current c3 dll.
