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https://issues.apache.org/jira/browse/BEAM-4091?focusedWorklogId=487385&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-487385
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ASF GitHub Bot logged work on BEAM-4091:
----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Sep/20 01:18
Start Date: 22/Sep/20 01:18
Worklog Time Spent: 10m
Work Description: codecov[bot] edited a comment on pull request #9907:
URL: https://github.com/apache/beam/pull/9907#issuecomment-682206351
# [Codecov](https://codecov.io/gh/apache/beam/pull/9907?src=pr&el=h1) Report
> Merging
[#9907](https://codecov.io/gh/apache/beam/pull/9907?src=pr&el=desc) into
[master](https://codecov.io/gh/apache/beam/commit/1b266601c39f243f48dfd085b565b984f936d02c?el=desc)
will **decrease** coverage by `42.03%`.
> The diff coverage is `24.13%`.
[](https://codecov.io/gh/apache/beam/pull/9907?src=pr&el=tree)
```diff
@@ Coverage Diff @@
## master #9907 +/- ##
===========================================
- Coverage 82.32% 40.29% -42.04%
===========================================
Files 452 451 -1
Lines 54016 53197 -819
===========================================
- Hits 44471 21434 -23037
- Misses 9545 31763 +22218
```
| [Impacted
Files](https://codecov.io/gh/apache/beam/pull/9907?src=pr&el=tree) | Coverage Δ
| |
|---|---|---|
|
[sdks/python/apache\_beam/transforms/util.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vdHJhbnNmb3Jtcy91dGlsLnB5)
| `39.08% <0.00%> (-56.36%)` | :arrow_down: |
|
[...n/apache\_beam/typehints/typed\_pipeline\_test\_py3.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vdHlwZWhpbnRzL3R5cGVkX3BpcGVsaW5lX3Rlc3RfcHkzLnB5)
| `16.87% <9.52%> (-73.43%)` | :arrow_down: |
|
[sdks/python/apache\_beam/typehints/decorators.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vdHlwZWhpbnRzL2RlY29yYXRvcnMucHk=)
| `39.45% <50.00%> (-43.84%)` | :arrow_down: |
|
[sdks/python/apache\_beam/transforms/ptransform.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vdHJhbnNmb3Jtcy9wdHJhbnNmb3JtLnB5)
| `38.27% <80.00%> (-52.78%)` | :arrow_down: |
|
[...python/apache\_beam/examples/complete/distribopt.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vZXhhbXBsZXMvY29tcGxldGUvZGlzdHJpYm9wdC5weQ==)
| `0.00% <0.00%> (-98.59%)` | :arrow_down: |
|
[...dks/python/apache\_beam/transforms/create\_source.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vdHJhbnNmb3Jtcy9jcmVhdGVfc291cmNlLnB5)
| `0.00% <0.00%> (-98.19%)` | :arrow_down: |
|
[...on/apache\_beam/runners/direct/helper\_transforms.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vcnVubmVycy9kaXJlY3QvaGVscGVyX3RyYW5zZm9ybXMucHk=)
| `0.00% <0.00%> (-98.15%)` | :arrow_down: |
|
[...e\_beam/runners/interactive/testing/mock\_ipython.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vcnVubmVycy9pbnRlcmFjdGl2ZS90ZXN0aW5nL21vY2tfaXB5dGhvbi5weQ==)
| `7.14% <0.00%> (-92.86%)` | :arrow_down: |
|
[.../examples/snippets/transforms/elementwise/pardo.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vZXhhbXBsZXMvc25pcHBldHMvdHJhbnNmb3Jtcy9lbGVtZW50d2lzZS9wYXJkby5weQ==)
| `11.36% <0.00%> (-88.64%)` | :arrow_down: |
|
[sdks/python/apache\_beam/typehints/opcodes.py](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree#diff-c2Rrcy9weXRob24vYXBhY2hlX2JlYW0vdHlwZWhpbnRzL29wY29kZXMucHk=)
| `0.00% <0.00%> (-87.92%)` | :arrow_down: |
| ... and [291
more](https://codecov.io/gh/apache/beam/pull/9907/diff?src=pr&el=tree-more) | |
------
[Continue to review full report at
Codecov](https://codecov.io/gh/apache/beam/pull/9907?src=pr&el=continue).
> **Legend** - [Click here to learn
more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by
[Codecov](https://codecov.io/gh/apache/beam/pull/9907?src=pr&el=footer). Last
update
[1b26660...138efc5](https://codecov.io/gh/apache/beam/pull/9907?src=pr&el=lastupdated).
Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
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Issue Time Tracking
-------------------
Worklog Id: (was: 487385)
Time Spent: 3h 40m (was: 3.5h)
> Typehint annotations don't work with @ptransform_fn annotation
> --------------------------------------------------------------
>
> Key: BEAM-4091
> URL: https://issues.apache.org/jira/browse/BEAM-4091
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Affects Versions: 2.4.0
> Reporter: Chuan Yu Foo
> Priority: P2
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> Typehint annotations don't work with functions annotated with
> {{@ptransform_fn}}, but they do work with the equivalent classes.
> The following is a minimal example illustrating this:
> {code:python}
> @beam.typehints.with_input_types(float)
> @beam.typehints.with_output_types(bytes)
> @beam.ptransform_fn
> def _DoStuffFn(pcoll):
> return pcoll | 'TimesTwo' >> beam.Map(lambda x: x * 2)
> @beam.typehints.with_input_types(float)
> @beam.typehints.with_output_types(bytes)
> class _DoStuffClass(beam.PTransform):
> def expand(self, pcoll):
> return pcoll | 'TimesTwo' >> beam.Map(lambda x: x * 2)
> {code}
> With definitions as above, the class correctly fails the typecheck:
> {code:python}
> def class_correctly_fails():
> p = beam.Pipeline(options=PipelineOptions(runtime_type_check=True))
> _ = (p
> | 'Create' >> beam.Create([1, 2, 3, 4, 5])
> | 'DoStuff1' >> _DoStuffClass()
> | 'DoStuff2' >> _DoStuffClass()
> | 'Write' >> beam.io.WriteToText('/tmp/output'))
> p.run().wait_until_finish()
> # apache_beam.typehints.decorators.TypeCheckError: Input type hint violation
> at DoStuff1: expected <type 'float'>, got <type 'int'>
> {code}
> But the {{ptransform_fn}} incorrectly passes the typecheck:
> {code:python}
> def ptransform_incorrectly_passes():
> p = beam.Pipeline(options=PipelineOptions(runtime_type_check=True))
> _ = (p
> | 'Create' >> beam.Create([1, 2, 3, 4, 5])
> | 'DoStuff1' >> _DoStuffFn()
> | 'DoStuff2' >> _DoStuffFn()
> | 'Write' >> beam.io.WriteToText('/tmp/output'))
> p.run().wait_until_finish()
> # No error
> {code}
> Note that changing the order of the {{@ptransform_fn}} and type hint
> annotations doesn't change the result, i.e. changing {{_DoStuffFn}} to the
> following still results in it incorrectly passing the typecheck:
> {code:python}
> @beam.ptransform_fn
> @beam.typehints.with_input_types(float)
> @beam.typehints.with_output_types(bytes)
> def _DoStuffFn(pcoll):
> return pcoll | 'TimesTwo' >> beam.Map(lambda x: x * 2)
> {code}
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