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Python C Extension Hello World
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gcc -fpic --shared $(python3-config --includes) greetmodule.c -o greet.abi3.so | |
# can also use $(pkg-config --cflags python-3.5) | |
# or | |
# python3 setup.py install --record files.txt --user |
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#include <Python.h> | |
static PyObject * | |
greet_name(PyObject *self, PyObject *args) | |
{ | |
const char *name; | |
if (!PyArg_ParseTuple(args, "s", &name)) | |
{ | |
return NULL; | |
} | |
printf("Hello %s!\n", name); | |
Py_RETURN_NONE; | |
} | |
static PyMethodDef GreetMethods[] = { | |
{"greet", greet_name, METH_VARARGS, "Greet an entity."}, | |
{NULL, NULL, 0, NULL} | |
}; | |
static struct PyModuleDef greet = | |
{ | |
PyModuleDef_HEAD_INIT, | |
"greet", /* name of module */ | |
"", /* module documentation, may be NULL */ | |
-1, /* size of per-interpreter state of the module, or -1 if the module keeps state in global variables. */ | |
GreetMethods | |
}; | |
PyMODINIT_FUNC PyInit_greet(void) | |
{ | |
return PyModule_Create(&greet); | |
} |
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import greet | |
def main(): | |
greet.greet('World') | |
if __name__ == "__main__": | |
main() |
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from setuptools import setup, Extension | |
setup( | |
name='greet', | |
version='1.0', | |
description='Python Package with Hello World C Extension', | |
ext_modules=[ | |
Extension( | |
'greet', | |
sources=['greetmodule.c'], | |
py_limited_api=True) | |
], | |
) |
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