zjffdu opened a new pull request #4147: URL: https://github.com/apache/zeppelin/pull/4147
### What is this PR for? 2 changes here in this PR: * Use SparkConf instead of properties, because the spark configuration may be in spark side (e.g. spark-defaults.conf instead of zeppelin side), `properties` mean the configuration in zeppelin side, `SparkConf` is the complete configuration of spark. * Code improvement on the logics of detecting availability of IPython. ### What type of PR is it? [Bug Fix | Improvement ] ### Todos * [ ] - Task ### What is the Jira issue? * https://issues.apache.org/jira/browse/ZEPPELIN-5417 ### How should this be tested? * Manually tested *  ### Screenshots (if appropriate) ### Questions: * Does the licenses files need update? No * Is there breaking changes for older versions? No * Does this needs documentation? No -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
