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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 -- This message was sent by Atlassian JIRA (v6.3.4#6332)