I'm writing a c++ extension module for python and all of the static functions have to be in the same file with the main module init function to prevent a symbol not in flat namespace error.
module.cpp:
#include "tech.h"
...
static PyMethodDef methods[] = {
{"func1", (PyCFunction)func1, METH_VARARGS, "..."},
{"func2", (PyCFunction)func2, METH_VARARGS, "..."},
{NULL, NULL, 0, NULL}};
static PyModuleDef tech_module = {
PyModuleDef_HEAD_INIT,
"test_cpp",
"...",
0,
tech_methods};
PyMODINIT_FUNC PyInit_test_cpp()
{
return PyModule_Create(&tech_module);
}
lib1.cpp:
static PyObject *func1(PyObject *self, PyObject *args) {
...
}
lib2.cpp:
static PyObject *func2(PyObject *self, PyObject *args) {
...
}
tech.h:
...
static PyObject *func1(PyObject *self, PyObject *args);
static PyObject *func2(PyObject *self, PyObject *args);
setup.py
from setuptools import setup, Extension, find_packages
from os import environ
environ["CC"] = "/usr/bin/g++"
setup(
name="test",
version="1.0",
packages=find_packages("."),
ext_modules=[
Extension(
"test_cpp",
include_dirs=[
"/usr/local/Cellar/boost/1.79.0_2/include/",
"/usr/local/include/",
],
sources=[
"cpp/tech/module.cpp",
"cpp/tech/lib1.cpp",
"cpp/tech/lib2.cpp",
],
extra_compile_args=["-std=c++20"],
)
],
)
The module works in Python if I move the definitions of two functions to module.cpp and compilation passes on both scenarios as expected. But is there any way I can define functions in other files. I'd not like to write all of them in one file. I'm using MacOS Monterey. Thanks.
