pybind11

问题 This appears to be a known limitation in pybind11. I read through all the docs, whatever bug reports seemed applicable, and everything I could find in the pybind11 gitter. I have a custom exception class in c++ that contains custom constructors and fields. A very basic example of such a class, trimmed for space is here: class BadData : public std::exception { public: // Constructors BadData() : msg(), stack(), _name("BadData") {} BadData(std::string _msg, std::string _stack) : msg(_msg),

问题 This appears to be a known limitation in pybind11. I read through all the docs, whatever bug reports seemed applicable, and everything I could find in the pybind11 gitter. I have a custom exception class in c++ that contains custom constructors and fields. A very basic example of such a class, trimmed for space is here: class BadData : public std::exception { public: // Constructors BadData() : msg(), stack(), _name("BadData") {} BadData(std::string _msg, std::string _stack) : msg(_msg),

问题 C/C++ void func(float* xyz1, float* xyz2,int n){ //do something for(int i=0; i<n;i++){ printf("%f %f\n",xyz1[i],xyz2[i]); } } Python import numpy as np n = 1000000 xyz1 = np.random.random((n,)).tolist() xyz2 = np.random.random((n,)).tolist() #pass above array to the C/C++ code for further processing. func(xyz1,xyz2,n) # <-- the call to the c/c++ code I have seen examples that call the C++ code using more high-level data structures like C++'s array . However, I simply want to pass it using

问题 I am trying to build a C++ static library in Linux (Ubuntu 18.04 in my case) using GCC using a Makefile . I noticed the issue is not with the makefile itself but the way I'm trying to compile and build with GCC. Before I explain a bit more on the GCC side, here is how my current project hierarchy looks like. The project uses Pybind11 header only library which resides in the External_Libraries directory. My class definition and implementation, naming Core.h and Core.cpp reside in Internal

问题 I have a C++ library which is built against the Apache Arrow C++ libraries, with a binding to python using Pybind. I'd like to be able to write a function in C++ to take a table constructed with PyArrow, like: void test(arrow::Table test); Passing in a PyArrow table like: tab = pa.Table.from_pandas(df) mybinding.test(tab) If I do a naive function as above, I get: TypeError: arrow_test(): incompatible function arguments. The following argument types are supported: 1. (arg0: arrow::Table) ->

问题 I've been using the excellent pybind11 library but have hit a brick wall. I need to return to Python a pointer to a non-copyable object (as the object contains unique_ptrs). Generally this works fine with caveat of using return_value_policy::reference. However, returning a pointer to an object that has vector of non-copyable's results in a compilation error. It seems pybind wants to perform a copy in this case even though the return value policy is reference and the function explicitly

问题 I've been using the excellent pybind11 library but have hit a brick wall. I need to return to Python a pointer to a non-copyable object (as the object contains unique_ptrs). Generally this works fine with caveat of using return_value_policy::reference. However, returning a pointer to an object that has vector of non-copyable's results in a compilation error. It seems pybind wants to perform a copy in this case even though the return value policy is reference and the function explicitly

问题 I have got some code written in c++ which i am trying to use in python without rewriting the complete code in python again and i am using Pybind11 to build a python module for that. I am trying to achieve this thing in Microsoft Visual Studio 2015 by following this tutorial here https://pybind11.readthedocs.io/en/stable/basics.html I did following things in visual studio. 1) Downloaded Pybind11 from https://codeload.github.com/pybind/pybind11/zip/master 2) Unzipped the file 3) In visual

问题 I'm trying to compile pybind11 on a Windows machine that has VisualStudio 2015 installed. I also have python 3.5.3 64bit installed, and cmake 2.8.12. I get the error: CMake Error at tools/FindPythonLibsNew.cmake:122 (message): Python config failure: Python is 64-bit, chosen compiler is 32-bit Call Stack (most recent call first): tools/pybind11Tools.cmake:16 (find_package) CMakeLists.txt:28 (include) I did not "choose" the compiler to be 32-bit, and looking at the CMakeLists.txt, I did not

问题 I'm trying to compile pybind11 on a Windows machine that has VisualStudio 2015 installed. I also have python 3.5.3 64bit installed, and cmake 2.8.12. I get the error: CMake Error at tools/FindPythonLibsNew.cmake:122 (message): Python config failure: Python is 64-bit, chosen compiler is 32-bit Call Stack (most recent call first): tools/pybind11Tools.cmake:16 (find_package) CMakeLists.txt:28 (include) I did not "choose" the compiler to be 32-bit, and looking at the CMakeLists.txt, I did not