[
https://issues.apache.org/jira/browse/BEAM-9574?focusedWorklogId=408082&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-408082
]
ASF GitHub Bot logged work on BEAM-9574:
----------------------------------------
Author: ASF GitHub Bot
Created on: 23/Mar/20 17:23
Start Date: 23/Mar/20 17:23
Worklog Time Spent: 10m
Work Description: TheNeuralBit commented on pull request #11196:
[BEAM-9574] Ensure that instances of generated NamedTuple classes can be pickled
URL: https://github.com/apache/beam/pull/11196
Attempting to pickle an instance of a generated NamedTuple class results in
the following:
```
_pickle.PicklingError: Can't pickle <class
'apache_beam.typehints.schemas.BeamSchema_a7de91e0_ae11_4c52_a041_0b58ada35ac1'>:
attribute lookup BeamSchema_a7de91e0_ae11_4c52_a041_0b58ada35ac
1 on apache_beam.typehints.schemas failed
```
In general, we shouldn't be pickling these instances, but occasionally it
may be necessary, and we should allow it rather than failing hard.
Post-Commit Tests Status (on master branch)
------------------------------------------------------------------------------------------------
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--- | --- | --- | --- | --- | --- | --- | ---
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| --- | --- | [](https://builds.apache.org/job/beam_PostCommit_Go_VR_Flink/lastCompletedBuild/)
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| --- | [](https://builds.apache.org/job/beam_PostCommit_Py_VR_Dataflow/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Py_VR_Dataflow_V2/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Py_ValCont/lastCompletedBuild/)
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--- | --- | --- | --- | ---
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| --- | ---
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Issue Time Tracking
-------------------
Worklog Id: (was: 408082)
Remaining Estimate: 0h
Time Spent: 10m
> NamedTuple instances generated from schemas cannot be pickled
> -------------------------------------------------------------
>
> Key: BEAM-9574
> URL: https://issues.apache.org/jira/browse/BEAM-9574
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Brian Hulette
> Assignee: Brian Hulette
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Attempting to pickle an instance of a generated NamedTuple class results in
> the following:
> {code}
> _pickle.PicklingError: Can't pickle <class
> 'apache_beam.typehints.schemas.BeamSchema_a7de91e0_ae11_4c52_a041_0b58ada35ac1'>:
> attribute lookup BeamSchema_a7de91e0_ae11_4c52_a041_0b58ada35ac
> 1 on apache_beam.typehints.schemas failed
> {code}
> In general, we shouldn't be pickling these instances, but occasionally it may
> be necessary, and we should just do it rather than failing hard.
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