Tag: pybind11

Why does pybind fail for functions without arguments?

c++ constructor constructor-overloading pybind11 python

I have an overloaded constructor in C++ (default + other). My automatically generated pybind code looks like this: When I delete the first constructor everything works fine. But for the first one I get this error: Does anyone know why this error is coming up and how to fix it? Edit: I am using a custom pybind generator. Answer Thanks

pybind11 crashes (segmentation fault (core dumped)) while importing ONNX python module

c++ onnx pybind11 python segmentation-fault

I am using pybind11 in my C++ code. When I try to import onnx, my code crashes with Segmentation fault (core dumped). However, if I import onnxruntime, everything is well. Of course both onnx and onnxruntime are installed on my system via pip. The order of the import lines is irrelevant. Wherever it is, py::module::import(“onnx”) crashes with segmentation fault. How

How to set python function as callback for c++ using pybind11?

c++ pybind11 python

It is from SDK which I can call the client from dynamic library in c++ codes. I want to port it to python bindings use pybind11. How do I set_callback in python? I have seen the doc and try: The code just failed to compile. My question, how do I convert the py::function to ftype_callback or there is other way

undefined symbol: _PyThreadState_Current when using pybind wrapped C++ code

bazel c++ pybind11 python

When I’m running bazel test … the cpp code will compile, but Python gets stuck. I read these before I wrote this question, but I can not find any solution: https://github.com/pybind/pybind11/issues/314 undefined symbol: _PyThreadState_Current when importing tensorflow https://github.com/carla-simulator/ros-bridge/issues/368 https://python-forum.io/thread-32297.html OS: Linux 5.11.0-43-generic #47~20.04.2-Ubuntu SMP Mon Dec 13 11:06:56 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux Python: Python 3.8.10 g++: g++ (Ubuntu

How to marshal through py::dict in C++ passing from pybind11

c++ dictionary pybind11 python stl

I try to pass a dictionary (unordered_map) structure from python to C++ through pybind11. On the python side I am trying to do: On the C++ side, I have It prints garbage data. I used reinterpret_cast to satisfy the Visual Studio compiler. Answer I sort of solve this by using py::cast on the C++ side:

pybind11 modify numpy array from C++

pybind11 python

EDIT: It works now, I do not know why. Don’t think I changed anything I want to pass in and modify a large numpy array with pybind11. Because it’s large I want to avoid copying it and returning a new one. Here’s the code: I think the py::array::forcecast is causing a conversion and so leaving the input matrix unmodified (in