The added parentheses around the PyIter_Next assignment suppress the following warning which gcc throws without:
```
warning: using the result of an assignment as a condition without parentheses [-Wparentheses]
```
The other change is a typo fix
/* propagate error */
}
- while (item = PyIter_Next(iterator)) {
+ while ((item = PyIter_Next(iterator))) {
/* do something with item */
...
/* release reference when done */
Py_INCREF(&CustomType);
if (PyModule_AddObject(m, "Custom", (PyObject *) &CustomType) < 0) {
Py_DECREF(&CustomType);
- PY_DECREF(m);
+ Py_DECREF(m);
return NULL;
}