Rearrange files to prepare to merge into Ray.

src/common/lib/python/common_module.c

@@ -0,0 +1,38 @@
+#include <Python.h>
+#include "node.h"
+
+#include "common_extension.h"
+
+static PyMethodDef common_methods[] = {
+    {"check_simple_value", check_simple_value, METH_VARARGS,
+     "Should the object be passed by value?"},
+    {NULL} /* Sentinel */
+};
+
+#ifndef PyMODINIT_FUNC /* declarations for DLL import/export */
+#define PyMODINIT_FUNC void
+#endif
+
+PyMODINIT_FUNC initcommon(void) {
+  PyObject *m;
+
+  if (PyType_Ready(&PyTaskType) < 0)
+    return;
+
+  if (PyType_Ready(&PyObjectIDType) < 0)
+    return;
+
+  m = Py_InitModule3("common", common_methods,
+                     "A module for common types. This is used for testing.");
+
+  Py_INCREF(&PyTaskType);
+  PyModule_AddObject(m, "Task", (PyObject *) &PyTaskType);
+
+  Py_INCREF(&PyObjectIDType);
+  PyModule_AddObject(m, "ObjectID", (PyObject *) &PyObjectIDType);
+
+  char common_error[] = "common.error";
+  CommonError = PyErr_NewException(common_error, NULL, NULL);
+  Py_INCREF(CommonError);
+  PyModule_AddObject(m, "common_error", CommonError);
+}