C++ (Cpp) PyModule_NewObject Examples

Example #1

File: moduleobject.c Project: IgnusIndia/pythonexperiment

PyObject *
PyModule_New(const char *name)
{
    PyObject *nameobj, *module;
    nameobj = PyUnicode_FromString(name);
    if (nameobj == NULL)
        return NULL;
    module = PyModule_NewObject(nameobj);
    Py_DECREF(nameobj);
    return module;
}

Example #2

File: moduleobject.c Project: 3lnc/cpython

PyObject *
PyModule_FromDefAndSpec2(struct PyModuleDef* def, PyObject *spec, int module_api_version)
{
    PyModuleDef_Slot* cur_slot;
    PyObject *(*create)(PyObject *, PyModuleDef*) = NULL;
    PyObject *nameobj;
    PyObject *m = NULL;
    int has_execution_slots = 0;
    const char *name;
    int ret;

    PyModuleDef_Init(def);

    nameobj = PyObject_GetAttrString(spec, "name");
    if (nameobj == NULL) {
        return NULL;
    }
    name = PyUnicode_AsUTF8(nameobj);
    if (name == NULL) {
        goto error;
    }

    if (!check_api_version(name, module_api_version)) {
        goto error;
    }

    if (def->m_size < 0) {
        PyErr_Format(
            PyExc_SystemError,
            "module %s: m_size may not be negative for multi-phase initialization",
            name);
        goto error;
    }

    for (cur_slot = def->m_slots; cur_slot && cur_slot->slot; cur_slot++) {
        if (cur_slot->slot == Py_mod_create) {
            if (create) {
                PyErr_Format(
                    PyExc_SystemError,
                    "module %s has multiple create slots",
                    name);
                goto error;
            }
            create = cur_slot->value;
        } else if (cur_slot->slot < 0 || cur_slot->slot > _Py_mod_LAST_SLOT) {
            PyErr_Format(
                PyExc_SystemError,
                "module %s uses unknown slot ID %i",
                name, cur_slot->slot);
            goto error;
        } else {
            has_execution_slots = 1;
        }
    }

    if (create) {
        m = create(spec, def);
        if (m == NULL) {
            if (!PyErr_Occurred()) {
                PyErr_Format(
                    PyExc_SystemError,
                    "creation of module %s failed without setting an exception",
                    name);
            }
            goto error;
        } else {
            if (PyErr_Occurred()) {
                PyErr_Format(PyExc_SystemError,
                            "creation of module %s raised unreported exception",
                            name);
                goto error;
            }
        }
    } else {
        m = PyModule_NewObject(nameobj);
        if (m == NULL) {
            goto error;
        }
    }

    if (PyModule_Check(m)) {
        ((PyModuleObject*)m)->md_state = NULL;
        ((PyModuleObject*)m)->md_def = def;
    } else {
        if (def->m_size > 0 || def->m_traverse || def->m_clear || def->m_free) {
            PyErr_Format(
                PyExc_SystemError,
                "module %s is not a module object, but requests module state",
                name);
            goto error;
        }
        if (has_execution_slots) {
            PyErr_Format(
                PyExc_SystemError,
                "module %s specifies execution slots, but did not create "
                    "a ModuleType instance",
                name);
            goto error;
        }
    }

    if (def->m_methods != NULL) {
        ret = _add_methods_to_object(m, nameobj, def->m_methods);
        if (ret != 0) {
            goto error;
        }
    }

    if (def->m_doc != NULL) {
        ret = PyModule_SetDocString(m, def->m_doc);
        if (ret != 0) {
            goto error;
        }
    }

    Py_DECREF(nameobj);
    return m;

error:
    Py_DECREF(nameobj);
    Py_XDECREF(m);
    return NULL;
}