pybind11

问题 I am trying to operate a c++ function on all elements of a python dictionary. For this I use a for loop in c++ over all elements of the dictionary. In this case and as far as I understand, this can be sped up using the #pragma omp parallel for simd clause. However, when I run it, I get the error: GC Object already Tracked Process finished with exit code 139 (interrupted by signal 11: SIGSEGV) Edit I have read on this post that the problem comes from the way of accessing a Python object in c++

问题 Working with VS 2019, Python 3.7 64bit on Windows 10 and pybind11 2.4.3 I have run into the following problem: When I create an object with a pybind11 py::class_ on the Python side and pass it directly to a method on the C++ side storing it in a std::vector, an attempt to read out the object later from Python results in an Access violation - no RTTI data . If the Python code stores the created object first in a Python variable to then pass it to C++ the subsequent access from Python works as

问题 Working with VS 2019, Python 3.7 64bit on Windows 10 and pybind11 2.4.3 I have run into the following problem: When I create an object with a pybind11 py::class_ on the Python side and pass it directly to a method on the C++ side storing it in a std::vector, an attempt to read out the object later from Python results in an Access violation - no RTTI data . If the Python code stores the created object first in a Python variable to then pass it to C++ the subsequent access from Python works as

问题 I see form my project document that I need to install python-pybind11 by using sudo apt -y install python-pybind11 but I got error like this: Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package python-pybind11 I'm not sure if python-pybind11 is a valid package, where can I check it? 回答1: Use this to install pybind11: pip install pybind11 Refer from Here. 回答2: In Ubuntu 18.04 apt-get install python-pybind11 On Mac, brew install

问题 I see form my project document that I need to install python-pybind11 by using sudo apt -y install python-pybind11 but I got error like this: Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package python-pybind11 I'm not sure if python-pybind11 is a valid package, where can I check it? 回答1: Use this to install pybind11: pip install pybind11 Refer from Here. 回答2: In Ubuntu 18.04 apt-get install python-pybind11 On Mac, brew install

问题 I'm very new to the whole CMake. Following this and this posts, now I want to call a MAXON function inside Python, using pybind11. What I have done so far: The library can be downloaded from this page (direct download link). wget https://www.maxongroup.com/medias/sys_master/root/8837358518302/EPOS-Linux-Library-En.zip unzip: unzip EPOS-Linux-Library-En.zip make the install shell script executable and run it: chmod +x ./install.sh sudo ./install.sh Then going to the example folder: cd /opt

问题 I'm very new to the whole CMake. Following this and this posts, now I want to call a MAXON function inside Python, using pybind11. What I have done so far: The library can be downloaded from this page (direct download link). wget https://www.maxongroup.com/medias/sys_master/root/8837358518302/EPOS-Linux-Library-En.zip unzip: unzip EPOS-Linux-Library-En.zip make the install shell script executable and run it: chmod +x ./install.sh sudo ./install.sh Then going to the example folder: cd /opt

问题 Motivation I am currently trying to use a custom class both in python and in c++ with pybind11. The motivation behind this is to use a python-trained classifier within c++. There are some working examples, e.g. in the official documentation https://pybind11.readthedocs.io/en/stable/advanced/cast/custom.html or by the nice examples from tdegeus https://github.com/tdegeus/pybind11_examples/blob/master/09_numpy_cpp-custom-matrix/pybind_matrix.h However, i still have problems to transfer this to

问题 I'm using pybind11 to wrap a C++ class method in a conversion lambda "shim" (I must do this because reasons). One of the method's arguments is defaulted in C++. class A { void meow(Eigen::Matrix4f optMat = Eigen::Matrix4f::Identity()); }; In my pybind code I want to preserve this optional parameter: py::class_<A>(m, "A") .def(py::init<>()) .def("meow", [](A& self, Eigen::Matrix4f optMat = Eigen::Matrix4f::Identity()) { return self.meow( optMat ); }); How do I make optMat an optional named

问题 I have a C++ function computing a large tensor which I would like to return to Python as a NumPy array via pybind11. From the documentation of pybind11, it seems like using STL unique_ptr is desirable. In the following example, the commented out version works, whereas the given one compiles but fails at runtime ("Unable to convert function return value to a Python type!"). Why is the smartpointer version failing? What is the canonical way to create and return a NumPy array? PS: Due to program