diff options
| -rw-r--r-- | python/pyspark/cloudpickle.py | 5 | ||||
| -rw-r--r-- | python/pyspark/tests.py | 6 |
2 files changed, 9 insertions, 2 deletions
diff --git a/python/pyspark/cloudpickle.py b/python/pyspark/cloudpickle.py index 4fda2a9b95..68062483de 100644 --- a/python/pyspark/cloudpickle.py +++ b/python/pyspark/cloudpickle.py @@ -560,8 +560,9 @@ class CloudPickler(pickle.Pickler): ] - itemgetter_obj = ctypes.cast(ctypes.c_void_p(id(obj)), ctypes.POINTER(ItemGetterType)).contents - return self.save_reduce(operator.itemgetter, (itemgetter_obj.item,)) + obj = ctypes.cast(ctypes.c_void_p(id(obj)), ctypes.POINTER(ItemGetterType)).contents + return self.save_reduce(operator.itemgetter, + obj.item if obj.nitems > 1 else (obj.item,)) if PyObject_HEAD: dispatch[operator.itemgetter] = save_itemgetter diff --git a/python/pyspark/tests.py b/python/pyspark/tests.py index 6dee7dc66c..8486c8595b 100644 --- a/python/pyspark/tests.py +++ b/python/pyspark/tests.py @@ -284,6 +284,12 @@ class TestRDDFunctions(PySparkTestCase): self.assertEqual(set([2]), sets[3]) self.assertEqual(set([1, 3]), sets[5]) + def test_itemgetter(self): + rdd = self.sc.parallelize([range(10)]) + from operator import itemgetter + self.assertEqual([1], rdd.map(itemgetter(1)).collect()) + self.assertEqual([(2, 3)], rdd.map(itemgetter(2, 3)).collect()) + class TestIO(PySparkTestCase): |