Github user dawidwys commented on the issue:
https://github.com/apache/flink/pull/5580
@aljoscha Yes that's right. The latest commit does not work because Python
API expects complete directories to be uploaded. I think it is quite important
cause this way the uploaded Python code can be modularized and python libs can
be used. Without the directories only a single file scripts could be executed.
If I understood it correctly.
Version from the commit a774fb664deabb6fdb437546038fc9477d291eb1 works, but
Python API still uses DFS underneath DistributedCache.
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