Github user SivaKaviyappa commented on the issue:
https://github.com/apache/zeppelin/pull/2231
@yywwd - Few things to check
What are your zeppelin-env.sh and livy intrepreter settings
1.have you set the PYTHONPATH in the zeppelin-env.sh
2. zeppelin.livy.url=http://localhost:8998 - have set this value in your
livy intrepreter?
3. you have installed python libraries in all the core nodes?
I am using emr 5.11.0 and everything works fine. ---
