Github user zentol commented on the issue:
https://github.com/apache/flink/pull/2063
test files are never copied to the tmp folder regardless of whether HDFS is
used or not. This is not a bug, but intended behaviour.
You can easily add the utils.py to the test invokation by modifying the
call to the PythonPlanBinder.main in PythonPlanBinderTest. it should be as
simple as appending "<relative-path>/utils.py" to the call.
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