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https://issues.apache.org/jira/browse/BEAM-7746?focusedWorklogId=490487&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-490487
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ASF GitHub Bot logged work on BEAM-7746:
----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Sep/20 00:35
Start Date: 25/Sep/20 00:35
Worklog Time Spent: 10m
Work Description: robertwb commented on pull request #12881:
URL: https://github.com/apache/beam/pull/12881#issuecomment-698656899
> 23:36:24 apache_beam/runners/worker/data_plane.py:714: error: Incompatible
return value type (got "Optional[GrpcClientDataChannel]", expected
"GrpcClientDataChannel") [return-value]
Sure this shouldn't return optional as well?
> 23:36:24 apache_beam/runners/worker/operations.py:722: error: Argument 1
to "append" of "list" has incompatible type "Tuple[DoOperation,
Iterable[SplitResultResidual]]"; expected "Tuple[DoOperation,
SplitResultResidual]" [arg-type]
self.dofn_runner.process does return an `Iterable[SplitResultResidual]`
> 23:36:24 apache_beam/runners/worker/bundle_processor.py:241: error:
Signature of "try_split" incompatible with supertype "Operation" [override]
The supertype returns Optional[Any], which should be compatible with this.
> 23:36:24 apache_beam/runners/worker/bundle_processor.py:978: error:
"Operation" has no attribute "add_timer_info" [attr-defined]
> 23:36:24 apache_beam/runners/worker/bundle_processor.py:990: error:
"Operation" has no attribute "process_timer" [attr-defined]
These will always be DoOperations.
>23:36:24 apache_beam/runners/worker/bundle_processor.py:1568: error:
Argument 5 to "StateBackedSideInputMap" has incompatible type "Coder"; expected
"WindowedValueCoder" [arg-type]
I think this will always hold, we just don't know it due to having
deserialized it with the generic mechanisms.
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Issue Time Tracking
-------------------
Worklog Id: (was: 490487)
Time Spent: 97h 10m (was: 97h)
> Add type hints to python code
> -----------------------------
>
> Key: BEAM-7746
> URL: https://issues.apache.org/jira/browse/BEAM-7746
> Project: Beam
> Issue Type: New Feature
> Components: sdk-py-core
> Reporter: Chad Dombrova
> Priority: P3
> Time Spent: 97h 10m
> Remaining Estimate: 0h
>
> As a developer of the beam source code, I would like the code to use pep484
> type hints so that I can clearly see what types are required, get completion
> in my IDE, and enforce code correctness via a static analyzer like mypy.
> This may be considered a precursor to BEAM-7060
> Work has been started here: [https://github.com/apache/beam/pull/9056]
>
>
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