Github user bzz commented on the issue:
https://github.com/apache/zeppelin/pull/1123
This looks very similar to
[ZEPPELIN-1063](https://issues.apache.org/jira/browse/ZEPPELIN-1063) with title
"Flaky Test - PythonInterpreterTest.testClose" wich I can not reproduce
locally.
Will re-open it and link this PR.
As CI failure is un-related, will merge if there is no more discussion.
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