Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/21383#discussion_r190664476
--- Diff: python/pyspark/tests.py ---
@@ -1246,6 +1277,25 @@ def test_pipe_unicode(self):
result = rdd.pipe('cat').collect()
self.assertEqual(data, result)
+ def test_stopiteration_in_client_code(self):
+
+ def stopit(*x):
+ raise StopIteration()
+
+ seq_rdd = self.sc.parallelize(range(10))
+ keyed_rdd = self.sc.parallelize((x % 2, x) for x in range(10))
+ exc = Py4JJavaError, RuntimeError
--- End diff --
Yea please with a comment for `aggregate`.
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