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https://issues.apache.org/jira/browse/FLINK-4098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15348529#comment-15348529
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Chesnay Schepler commented on FLINK-4098:
-----------------------------------------
huh. As far as i can tell, every call to next() in PythonStreamer and
underlying classes is always preceded by a call to hasNext().
With the now working debug statements, do we not even execute the first
iteration?
It _could_ be that the iteration is actually not formed correctly. So maybe
there is no input for our function since the iteration is broken.
> Iteration support in Python API
> -------------------------------
>
> Key: FLINK-4098
> URL: https://issues.apache.org/jira/browse/FLINK-4098
> Project: Flink
> Issue Type: New Feature
> Components: Python API
> Affects Versions: 1.0.2
> Reporter: Geoffrey Mon
> Priority: Minor
>
> Bulk and delta iterations are not supported in the Python API. Currently
> working on this at https://github.com/GEOFBOT/flink
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