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https://issues.apache.org/jira/browse/BEAM-5615?focusedWorklogId=152258&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-152258
]
ASF GitHub Bot logged work on BEAM-5615:
----------------------------------------
Author: ASF GitHub Bot
Created on: 08/Oct/18 14:41
Start Date: 08/Oct/18 14:41
Worklog Time Spent: 10m
Work Description: tvalentyn commented on a change in pull request #6570:
[BEAM-5615] fix cmp is an invalid keyword for sort function in python 3
URL: https://github.com/apache/beam/pull/6570#discussion_r223388736
##########
File path: sdks/python/apache_beam/transforms/combiners.py
##########
@@ -290,9 +291,12 @@ def __init__(self, n, compare=None, key=None,
reverse=False):
def _sort_buffer(self, buffer, lt):
if lt in (operator.gt, operator.lt):
buffer.sort(key=self._key_fn, reverse=self._reverse)
+ elif self._key_fn:
+ buffer.sort(key=cmp_to_key(
Review comment:
Thanks for clarification, @robertwb. With this assumption, we can simplify
the logic here. This assumption is also consistent with `Top` docstring,
however I was confused by
https://github.com/apache/beam/blob/1c573ffba014f6969a689d0e6cdcace31358885d/sdks/python/apache_beam/transforms/combiners.py#L319.
robertwb@, would you be comfortable with merging PR as with a clean-up in a
follow-up change? I can own the cleanup and can send you a PR with a few
comment changes, and assertions here and there that ensure that that `key_fn`
and `compare` are not used together.
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Issue Time Tracking
-------------------
Worklog Id: (was: 152258)
Time Spent: 2h 10m (was: 2h)
> Several tests fail on Python 3 with TypeError: 'cmp' is an invalid keyword
> argument for this function
> -----------------------------------------------------------------------------------------------------
>
> Key: BEAM-5615
> URL: https://issues.apache.org/jira/browse/BEAM-5615
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-py-harness
> Reporter: Valentyn Tymofieiev
> Assignee: Juta Staes
> Priority: Major
> Fix For: Not applicable
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> ERROR: test_top (apache_beam.transforms.combiners_test.CombineTest)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/transforms/combiners_test.py",
> line 89, in test_top
> names) # Note parameter passed to comparator.
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/pvalue.py",
> line 111, in __or__
> return self.pipeline.apply(ptransform, self)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/pipeline.py",
> line 467, in apply
> label or transform.label)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/pipeline.py",
> line 477, in apply
> return self.apply(transform, pvalueish)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/pipeline.py",
> line 513, in apply
> pvalueish_result = self.runner.apply(transform, pvalueish)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/runners/runner.py",
> line 193, in apply
> return m(transform, input)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/runners/runner.py",
> line 199, in apply_PTransform
> return transform.expand(input)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/transforms/ptransform.py",
> line 759, in expand
> return self._fn(pcoll, *args, **kwargs)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/transforms/combiners.py",
> line 185, in Of
> TopCombineFn(n, compare, key, reverse), *args, **kwargs)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/pvalue.py",
> line 111, in __or__
> return self.pipeline.apply(ptransform, self)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/pipeline.py",
> line 513, in apply
> pvalueish_result = self.runner.apply(transform, pvalueish)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/runners/runner.py",
> line 193, in apply
> return m(transform, input)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/runners/runner.py",
> line 199, in apply_PTransform
> return transform.expand(input)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/transforms/core.py",
> line 1251, in expand
> default_value = combine_fn.apply([], *self.args, **self.kwargs)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/transforms/core.py",
> line 623, in apply
> *args, **kwargs)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/transforms/combiners.py",
> line 362, in extract_output
> self._sort_buffer(buffer, lt)
> File
> "/usr/local/google/home/valentyn/projects/beam/clean_head/beam/sdks/python/apache_beam/transforms/combiners.py",
> line 295, in _sort_buffer
> key=self._key_fn)
> TypeError: 'cmp' is an invalid keyword argument for this function
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