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https://issues.apache.org/jira/browse/BEAM-5878?focusedWorklogId=289682&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-289682
]
ASF GitHub Bot logged work on BEAM-5878:
----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Aug/19 13:59
Start Date: 06/Aug/19 13:59
Worklog Time Spent: 10m
Work Description: tvalentyn commented on pull request #9237: [BEAM-5878]
support DoFns with Keyword-only arguments
URL: https://github.com/apache/beam/pull/9237#discussion_r311077705
##########
File path:
sdks/python/apache_beam/transforms/transforms_keyword_only_args_py3_only_test.py
##########
@@ -0,0 +1,115 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Unit tests for side inputs."""
+
+from __future__ import absolute_import
+
+import logging
+import sys
+import unittest
+
+import apache_beam as beam # pylint: disable=unused-import
+from apache_beam.testing.test_pipeline import TestPipeline # pylint:
disable=unused-import
+from apache_beam.testing.util import assert_that # pylint:
disable=unused-import
+from apache_beam.testing.util import equal_to # pylint: disable=unused-import
+
+IS_PYTHON_2 = sys.version_info[0] == 2
+
+
+# pylint: disable=exec-used
[email protected](IS_PYTHON_2, 'test only in python 3 with kwonly args')
Review comment:
We came up with a different way of adding Python3-only tests, see
https://github.com/apache/beam/pull/9223. Let's follow that pattern here. We
would need to rename this file.
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Issue Time Tracking
-------------------
Worklog Id: (was: 289682)
Time Spent: 5h 50m (was: 5h 40m)
> Support DoFns with Keyword-only arguments in Python 3.
> ------------------------------------------------------
>
> Key: BEAM-5878
> URL: https://issues.apache.org/jira/browse/BEAM-5878
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-py-core
> Reporter: Valentyn Tymofieiev
> Assignee: yoshiki obata
> Priority: Minor
> Fix For: 2.16.0
>
> Time Spent: 5h 50m
> Remaining Estimate: 0h
>
> Python 3.0 [adds a possibility|https://www.python.org/dev/peps/pep-3102/] to
> define functions with keyword-only arguments.
> Currently Beam does not handle them correctly. [~ruoyu] pointed out [one
> place|https://github.com/apache/beam/blob/a56ce43109c97c739fa08adca45528c41e3c925c/sdks/python/apache_beam/typehints/decorators.py#L118]
> in our codebase that we should fix: in Python in 3.0 inspect.getargspec()
> will fail on functions with keyword-only arguments, but a new method
> [inspect.getfullargspec()|https://docs.python.org/3/library/inspect.html#inspect.getfullargspec]
> supports them.
> There may be implications for our (best-effort) type-hints machinery.
> We should also add a Py3-only unit tests that covers DoFn's with keyword-only
> arguments once Beam Python 3 tests are in a good shape.
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