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https://issues.apache.org/jira/browse/BEAM-8224?focusedWorklogId=313296&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-313296
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ASF GitHub Bot logged work on BEAM-8224:
----------------------------------------
Author: ASF GitHub Bot
Created on: 16/Sep/19 20:50
Start Date: 16/Sep/19 20:50
Worklog Time Spent: 10m
Work Description: udim commented on issue #9563: [BEAM-8224] Fix bug in
_fn_takes_side_inputs
URL: https://github.com/apache/beam/pull/9563#issuecomment-531952821
trivial_inference.py defaults to Any in 3.6, 3.7 since it doesn't support
kwargs (added by the wrapper).
In 2.7, 3.5 these are supported, but since side-input hints are not passed
along the inferred output type is str, and the coder for that fails to encode a
tuple.
Even if we did pass side-input hints, there is still missing logic that
would bind the arguments for the var_positional into a single tuple (like
getcallargs or signature.bind).
Perhaps we should skip trivial_inference when side-inputs are present.
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Issue Time Tracking
-------------------
Worklog Id: (was: 313296)
Time Spent: 2h 40m (was: 2.5h)
> The way we inspect arguments in Python does not work for lambda *_: ...
> -----------------------------------------------------------------------
>
> Key: BEAM-8224
> URL: https://issues.apache.org/jira/browse/BEAM-8224
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Yueyang Qiu
> Assignee: Udi Meiri
> Priority: Blocker
> Fix For: 2.16.0
>
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> We need to make it work and create a test for this case.
>
> Assigning to Udi who authored
> [https://github.com/apache/beam/pull/9283|https://www.google.com/url?q=https://github.com/apache/beam/pull/9283&sa=D&usg=AFQjCNETtLzhe9jPfGzLHJb2N4Sle-FuNw].
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