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Posted to github@beam.apache.org by "liferoad (via GitHub)" <gi...@apache.org> on 2023/08/18 12:24:50 UTC

[GitHub] [beam] liferoad opened a new issue, #28061: [Feature Request]: Issue the warning messages when the `process` method in `DoFn` does not return anything

liferoad opened a new issue, #28061:
URL: https://github.com/apache/beam/issues/28061

   ### What would you like to happen?
   
   When creating a `DoFn`, if the `process` method returns None, we can issue a warning, such as `no iterator is returned by the process method in DoFn`. This could help users debug whether returning None is expected. Possible code changes could be in `_check_fn_use_yield_and_return` from https://github.com/apache/beam/blob/master/sdks/python/apache_beam/transforms/core.py.
   
   ### Issue Priority
   
   Priority: 3 (nice-to-have improvement)
   
   ### Issue Components
   
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[GitHub] [beam] timgrein commented on issue #28061: [Feature Request]: Issue the warning messages when the `process` method in `DoFn` does not return anything

Posted by "timgrein (via GitHub)" <gi...@apache.org>.
timgrein commented on issue #28061:
URL: https://github.com/apache/beam/issues/28061#issuecomment-1693125382

   .take-issue


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