kdcro101 · December 18, 2020 19:31 · May 19, 2018 · Sep 17, 2011
diff --git a/build.sh b/build.sh
@@ -1 +1,4 @@
-gcc -fpic --shared $(python-config --includes) greetmodule.c -o greetmodule.so
+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
diff --git a/greetmodule.c b/greetmodule.c
@@ -20,8 +20,16 @@ static PyMethodDef GreetMethods[] = {
     {NULL, NULL, 0, NULL}
 };
 
-PyMODINIT_FUNC
-initgreet(void)
+static struct PyModuleDef greet =
 {
-    (void) Py_InitModule("greet", GreetMethods);
-}
+    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);
+}
diff --git a/setup.py b/setup.py
@@ -0,0 +1,14 @@
+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)
+    ],
+)
diff --git a/build.sh b/build.sh
@@ -0,0 +1 @@
+gcc -fpic --shared $(python-config --includes) greetmodule.c -o greetmodule.so
diff --git a/greetmodule.c b/greetmodule.c
@@ -0,0 +1,27 @@
+#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}
+};
+
+PyMODINIT_FUNC
+initgreet(void)
+{
+    (void) Py_InitModule("greet", GreetMethods);
+}
diff --git a/helloworld_in_c.py b/helloworld_in_c.py
@@ -0,0 +1,7 @@
+import greet
+
+def main():
+    greet.greet('World')
+
+if __name__ == "__main__":
+    main()
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		gcc -fpic --shared $(python-config --includes) greetmodule.c -o greetmodule.so
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