From 04e44b37cc04f62fbf9e08c7076349e0a4d12ea8 Mon Sep 17 00:00:00 2001 From: Davies Liu Date: Thu, 16 Apr 2015 16:20:57 -0700 Subject: [SPARK-4897] [PySpark] Python 3 support This PR update PySpark to support Python 3 (tested with 3.4). Known issue: unpickle array from Pyrolite is broken in Python 3, those tests are skipped. TODO: ec2/spark-ec2.py is not fully tested with python3. Author: Davies Liu Author: twneale Author: Josh Rosen Closes #5173 from davies/python3 and squashes the following commits: d7d6323 [Davies Liu] fix tests 6c52a98 [Davies Liu] fix mllib test 99e334f [Davies Liu] update timeout b716610 [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 cafd5ec [Davies Liu] adddress comments from @mengxr bf225d7 [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 179fc8d [Davies Liu] tuning flaky tests 8c8b957 [Davies Liu] fix ResourceWarning in Python 3 5c57c95 [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 4006829 [Davies Liu] fix test 2fc0066 [Davies Liu] add python3 path 71535e9 [Davies Liu] fix xrange and divide 5a55ab4 [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 125f12c [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 ed498c8 [Davies Liu] fix compatibility with python 3 820e649 [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 e8ce8c9 [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 ad7c374 [Davies Liu] fix mllib test and warning ef1fc2f [Davies Liu] fix tests 4eee14a [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 20112ff [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 59bb492 [Davies Liu] fix tests 1da268c [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 ca0fdd3 [Davies Liu] fix code style 9563a15 [Davies Liu] add imap back for python 2 0b1ec04 [Davies Liu] make python examples work with Python 3 d2fd566 [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 a716d34 [Davies Liu] test with python 3.4 f1700e8 [Davies Liu] fix test in python3 671b1db [Davies Liu] fix test in python3 692ff47 [Davies Liu] fix flaky test 7b9699f [Davies Liu] invalidate import cache for Python 3.3+ 9c58497 [Davies Liu] fix kill worker 309bfbf [Davies Liu] keep compatibility 5707476 [Davies Liu] cleanup, fix hash of string in 3.3+ 8662d5b [Davies Liu] Merge branch 'master' of github.com:apache/spark into python3 f53e1f0 [Davies Liu] fix tests 70b6b73 [Davies Liu] compile ec2/spark_ec2.py in python 3 a39167e [Davies Liu] support customize class in __main__ 814c77b [Davies Liu] run unittests with python 3 7f4476e [Davies Liu] mllib tests passed d737924 [Davies Liu] pass ml tests 375ea17 [Davies Liu] SQL tests pass 6cc42a9 [Davies Liu] rename 431a8de [Davies Liu] streaming tests pass 78901a7 [Davies Liu] fix hash of serializer in Python 3 24b2f2e [Davies Liu] pass all RDD tests 35f48fe [Davies Liu] run future again 1eebac2 [Davies Liu] fix conflict in ec2/spark_ec2.py 6e3c21d [Davies Liu] make cloudpickle work with Python3 2fb2db3 [Josh Rosen] Guard more changes behind sys.version; still doesn't run 1aa5e8f [twneale] Turned out `pickle.DictionaryType is dict` == True, so swapped it out 7354371 [twneale] buffer --> memoryview I'm not super sure if this a valid change, but the 2.7 docs recommend using memoryview over buffer where possible, so hoping it'll work. b69ccdf [twneale] Uses the pure python pickle._Pickler instead of c-extension _pickle.Pickler. It appears pyspark 2.7 uses the pure python pickler as well, so this shouldn't degrade pickling performance (?). f40d925 [twneale] xrange --> range e104215 [twneale] Replaces 2.7 types.InstsanceType with 3.4 `object`....could be horribly wrong depending on how types.InstanceType is used elsewhere in the package--see http://bugs.python.org/issue8206 79de9d0 [twneale] Replaces python2.7 `file` with 3.4 _io.TextIOWrapper 2adb42d [Josh Rosen] Fix up some import differences between Python 2 and 3 854be27 [Josh Rosen] Run `futurize` on Python code: 7c5b4ce [Josh Rosen] Remove Python 3 check in shell.py. --- python/pyspark/streaming/tests.py | 39 ++++++++++++++++++++------------------- 1 file changed, 20 insertions(+), 19 deletions(-) (limited to 'python/pyspark/streaming/tests.py') diff --git a/python/pyspark/streaming/tests.py b/python/pyspark/streaming/tests.py index 9b4635e490..06d2215437 100644 --- a/python/pyspark/streaming/tests.py +++ b/python/pyspark/streaming/tests.py @@ -22,6 +22,7 @@ import operator import unittest import tempfile import struct +from functools import reduce from py4j.java_collections import MapConverter @@ -51,7 +52,7 @@ class PySparkStreamingTestCase(unittest.TestCase): while len(result) < n and time.time() - start_time < self.timeout: time.sleep(0.01) if len(result) < n: - print "timeout after", self.timeout + print("timeout after", self.timeout) def _take(self, dstream, n): """ @@ -131,7 +132,7 @@ class BasicOperationTests(PySparkStreamingTestCase): def func(dstream): return dstream.map(str) - expected = map(lambda x: map(str, x), input) + expected = [list(map(str, x)) for x in input] self._test_func(input, func, expected) def test_flatMap(self): @@ -140,8 +141,8 @@ class BasicOperationTests(PySparkStreamingTestCase): def func(dstream): return dstream.flatMap(lambda x: (x, x * 2)) - expected = map(lambda x: list(chain.from_iterable((map(lambda y: [y, y * 2], x)))), - input) + expected = [list(chain.from_iterable((map(lambda y: [y, y * 2], x)))) + for x in input] self._test_func(input, func, expected) def test_filter(self): @@ -150,7 +151,7 @@ class BasicOperationTests(PySparkStreamingTestCase): def func(dstream): return dstream.filter(lambda x: x % 2 == 0) - expected = map(lambda x: filter(lambda y: y % 2 == 0, x), input) + expected = [[y for y in x if y % 2 == 0] for x in input] self._test_func(input, func, expected) def test_count(self): @@ -159,7 +160,7 @@ class BasicOperationTests(PySparkStreamingTestCase): def func(dstream): return dstream.count() - expected = map(lambda x: [len(x)], input) + expected = [[len(x)] for x in input] self._test_func(input, func, expected) def test_reduce(self): @@ -168,7 +169,7 @@ class BasicOperationTests(PySparkStreamingTestCase): def func(dstream): return dstream.reduce(operator.add) - expected = map(lambda x: [reduce(operator.add, x)], input) + expected = [[reduce(operator.add, x)] for x in input] self._test_func(input, func, expected) def test_reduceByKey(self): @@ -185,27 +186,27 @@ class BasicOperationTests(PySparkStreamingTestCase): def test_mapValues(self): """Basic operation test for DStream.mapValues.""" input = [[("a", 2), ("b", 2), ("c", 1), ("d", 1)], - [("", 4), (1, 1), (2, 2), (3, 3)], + [(0, 4), (1, 1), (2, 2), (3, 3)], [(1, 1), (2, 1), (3, 1), (4, 1)]] def func(dstream): return dstream.mapValues(lambda x: x + 10) expected = [[("a", 12), ("b", 12), ("c", 11), ("d", 11)], - [("", 14), (1, 11), (2, 12), (3, 13)], + [(0, 14), (1, 11), (2, 12), (3, 13)], [(1, 11), (2, 11), (3, 11), (4, 11)]] self._test_func(input, func, expected, sort=True) def test_flatMapValues(self): """Basic operation test for DStream.flatMapValues.""" input = [[("a", 2), ("b", 2), ("c", 1), ("d", 1)], - [("", 4), (1, 1), (2, 1), (3, 1)], + [(0, 4), (1, 1), (2, 1), (3, 1)], [(1, 1), (2, 1), (3, 1), (4, 1)]] def func(dstream): return dstream.flatMapValues(lambda x: (x, x + 10)) expected = [[("a", 2), ("a", 12), ("b", 2), ("b", 12), ("c", 1), ("c", 11), ("d", 1), ("d", 11)], - [("", 4), ("", 14), (1, 1), (1, 11), (2, 1), (2, 11), (3, 1), (3, 11)], + [(0, 4), (0, 14), (1, 1), (1, 11), (2, 1), (2, 11), (3, 1), (3, 11)], [(1, 1), (1, 11), (2, 1), (2, 11), (3, 1), (3, 11), (4, 1), (4, 11)]] self._test_func(input, func, expected) @@ -233,7 +234,7 @@ class BasicOperationTests(PySparkStreamingTestCase): def test_countByValue(self): """Basic operation test for DStream.countByValue.""" - input = [range(1, 5) * 2, range(5, 7) + range(5, 9), ["a", "a", "b", ""]] + input = [list(range(1, 5)) * 2, list(range(5, 7)) + list(range(5, 9)), ["a", "a", "b", ""]] def func(dstream): return dstream.countByValue() @@ -285,7 +286,7 @@ class BasicOperationTests(PySparkStreamingTestCase): def func(d1, d2): return d1.union(d2) - expected = [range(6), range(6), range(6)] + expected = [list(range(6)), list(range(6)), list(range(6))] self._test_func(input1, func, expected, input2=input2) def test_cogroup(self): @@ -424,7 +425,7 @@ class StreamingContextTests(PySparkStreamingTestCase): duration = 0.1 def _add_input_stream(self): - inputs = map(lambda x: range(1, x), range(101)) + inputs = [range(1, x) for x in range(101)] stream = self.ssc.queueStream(inputs) self._collect(stream, 1, block=False) @@ -441,7 +442,7 @@ class StreamingContextTests(PySparkStreamingTestCase): self.ssc.stop() def test_queue_stream(self): - input = [range(i + 1) for i in range(3)] + input = [list(range(i + 1)) for i in range(3)] dstream = self.ssc.queueStream(input) result = self._collect(dstream, 3) self.assertEqual(input, result) @@ -457,13 +458,13 @@ class StreamingContextTests(PySparkStreamingTestCase): with open(os.path.join(d, name), "w") as f: f.writelines(["%d\n" % i for i in range(10)]) self.wait_for(result, 2) - self.assertEqual([range(10), range(10)], result) + self.assertEqual([list(range(10)), list(range(10))], result) def test_binary_records_stream(self): d = tempfile.mkdtemp() self.ssc = StreamingContext(self.sc, self.duration) dstream = self.ssc.binaryRecordsStream(d, 10).map( - lambda v: struct.unpack("10b", str(v))) + lambda v: struct.unpack("10b", bytes(v))) result = self._collect(dstream, 2, block=False) self.ssc.start() for name in ('a', 'b'): @@ -471,10 +472,10 @@ class StreamingContextTests(PySparkStreamingTestCase): with open(os.path.join(d, name), "wb") as f: f.write(bytearray(range(10))) self.wait_for(result, 2) - self.assertEqual([range(10), range(10)], map(lambda v: list(v[0]), result)) + self.assertEqual([list(range(10)), list(range(10))], [list(v[0]) for v in result]) def test_union(self): - input = [range(i + 1) for i in range(3)] + input = [list(range(i + 1)) for i in range(3)] dstream = self.ssc.queueStream(input) dstream2 = self.ssc.queueStream(input) dstream3 = self.ssc.union(dstream, dstream2) -- cgit v1.2.3