simplify exception logic

Author: philippedistributive

src/JSObjectProxy.cc

@@ -321,10 +321,6 @@ PyObject *JSObjectProxyMethodDefinitions::JSObjectProxy_iter_next(JSObjectProxy
   PyObject *retVal = JSFunctionProxyMethodDefinitions::JSFunctionProxy_call(nextFunction, PyTuple_New(0), NULL);
   Py_DECREF(nextFunction);
   if (retVal == NULL) {
-    if (PyErr_Occurred()) {
-      PyErr_PrintEx(0);    
-    }
-    PyErr_SetNone(PyExc_StopIteration);
     return NULL;
   }
 

tests/python/test_dict_methods.py

@@ -569,5 +569,6 @@ def test_next_operator_non_iterator():
   try:
     next(make_js_generator(range(0,5)))
     assert (False)
-  except StopIteration as e:
-    assert (True)
+  except Exception as e:
+    assert str(type(e)) == "<class 'pythonmonkey.SpiderMonkeyError'>"
+    assert str(e).__contains__("'range' object is not an iterator")