init: [init] initial commit

Author: dmilos

capi/mymodule.c

@@ -0,0 +1,82 @@
+#include "Python.h"
+
+struct module_state {
+    PyObject *error;
+};
+
+#if PY_MAJOR_VERSION >= 3
+#define GETSTATE(m) ((struct module_state*)PyModule_GetState(m))
+#else
+#define GETSTATE(m) (&_state)
+static struct module_state _state;
+#endif
+
+static PyObject *
+error_out(PyObject *m) {
+    struct module_state *st = GETSTATE(m);
+    PyErr_SetString(st->error, "something bad happened");
+    return NULL;
+}
+
+static PyMethodDef myextension_methods[] = {
+    {"error_out", (PyCFunction)error_out, METH_NOARGS, NULL},
+    {NULL, NULL}
+};
+
+#if PY_MAJOR_VERSION >= 3
+
+static int myextension_traverse(PyObject *m, visitproc visit, void *arg) {
+    Py_VISIT(GETSTATE(m)->error);
+    return 0;
+}
+
+static int myextension_clear(PyObject *m) {
+    Py_CLEAR(GETSTATE(m)->error);
+    return 0;
+}
+
+
+static struct PyModuleDef moduledef = {
+        PyModuleDef_HEAD_INIT,
+        "myextension",
+        NULL,
+        sizeof(struct module_state),
+        myextension_methods,
+        NULL,
+        myextension_traverse,
+        myextension_clear,
+        NULL
+};
+
+#define INITERROR return NULL
+
+PyObject *
+PyInit_myextension(void)
+
+#else
+#define INITERROR return
+
+void
+initmyextension(void)
+#endif
+{
+#if PY_MAJOR_VERSION >= 3
+    PyObject *module = PyModule_Create(&moduledef);
+#else
+    PyObject *module = Py_InitModule("myextension", myextension_methods);
+#endif
+
+    if (module == NULL)
+        INITERROR;
+    struct module_state *st = GETSTATE(module);
+
+    st->error = PyErr_NewException("myextension.Error", NULL, NULL);
+    if (st->error == NULL) {
+        Py_DECREF(module);
+        INITERROR;
+    }
+
+#if PY_MAJOR_VERSION >= 3
+    return module;
+#endif
+}

core_class/test.py

@@ -0,0 +1,17 @@
+class FooType(object):
+    def __init__(self, id):
+        self.id = id
+        print self.id, 'born'
+
+    def __del__(self):
+        print self.id, 'died'
+
+def make_foo():
+    print 'Making...'
+    ft = FooType(1)
+    print 'Returning...'
+    return ft
+
+print 'Calling...'
+ft = make_foo()
+print 'End...'