Robbe created BEAM-6878:
---------------------------
Summary: test_multimap_side_input in fn_api.runner_test fails on
Python 3.6
Key: BEAM-6878
URL: https://issues.apache.org/jira/browse/BEAM-6878
Project: Beam
Issue Type: Sub-task
Components: sdk-py-core
Reporter: Robbe
The test fails for each Test class with the following stacktrace:
{noformat}
Traceback (most recent call last):
File
"/home/robbe/workspace/beam/sdks/python/apache_beam/runners/portability/fn_api_runner_test.py",
line 233, in test_multimap_side_input
equal_to([('a', [1, 3]), ('b', [2])]))
File "/home/robbe/workspace/beam/sdks/python/apache_beam/pipeline.py", line
426, in __exit__
self.run().wait_until_finish()
File "/home/robbe/workspace/beam/sdks/python/apache_beam/pipeline.py", line
406, in run
self._options).run(False)
File "/home/robbe/workspace/beam/sdks/python/apache_beam/pipeline.py", line
419, in run
return self.runner.run_pipeline(self, self._options)
File
"/home/robbe/workspace/beam/sdks/python/apache_beam/runners/portability/fn_api_runner.py",
line 276, in run_pipeline
default_environment=self._default_environment))
File
"/home/robbe/workspace/beam/sdks/python/apache_beam/runners/portability/fn_api_runner.py",
line 280, in run_via_runner_api
return self.run_stages(*self.create_stages(pipeline_proto))
File
"/home/robbe/workspace/beam/sdks/python/apache_beam/runners/portability/fn_api_runner.py",
line 356, in run_stages
stage_context.safe_coders)
File
"/home/robbe/workspace/beam/sdks/python/apache_beam/runners/portability/fn_api_runner.py",
line 450, in run_stage
elements_by_window = _WindowGroupingBuffer(si, value_coder)
File
"/home/robbe/workspace/beam/sdks/python/apache_beam/runners/portability/fn_api_runner.py",
line 199, in __init__
self._key_coder = coder.wrapped_value_coder.key_coder()
File "/home/robbe/workspace/beam/sdks/python/apache_beam/coders/coders.py",
line 182, in key_coder
raise ValueError('Not a KV coder: %s.' % self)
ValueError: Not a KV coder: BytesCoder.{noformat}
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