This exception is thrown from spark side. I suspect you set them. Please grep them in SPARK_CONF_DIR
grep -nr SPARK_CLASSPATH SPARK_CONF_DIR grep -nr spark.driver.extraClassPath SPARK_CONF_DIR Best Regard, Jeff Zhang From: Russell Jurney <russell.jur...@gmail.com<mailto:russell.jur...@gmail.com>> Reply-To: "users@zeppelin.apache.org<mailto:users@zeppelin.apache.org>" <users@zeppelin.apache.org<mailto:users@zeppelin.apache.org>> Date: Saturday, December 10, 2016 at 12:02 PM To: "users@zeppelin.apache.org<mailto:users@zeppelin.apache.org>" <users@zeppelin.apache.org<mailto:users@zeppelin.apache.org>> Subject: Re: Unable to print("Hello World") using %python :( Use only the former.
