Github user sryza commented on a diff in the pull request: https://github.com/apache/spark/pull/3976#discussion_r23858127 --- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala --- @@ -267,10 +277,22 @@ object SparkSubmit { // In yarn-cluster mode, use yarn.Client as a wrapper around the user class if (isYarnCluster) { childMainClass = "org.apache.spark.deploy.yarn.Client" - if (args.primaryResource != SPARK_INTERNAL) { - childArgs += ("--jar", args.primaryResource) + if (args.isPython) {// yarn-cluster mode for python application + val primaryResourceLocalPath = new Path(args.primaryResource) + childArgs += ("--primaryResource", primaryResourceLocalPath.getName) + val pyFilesLocalNames:String = if (args.pyFiles != null) { + args.pyFiles.split(",").map { p => (new Path(p)).getName }.mkString(",") + } else { + "null" + } + childArgs += ("--py-files", pyFilesLocalNames.toString) --- End diff -- No need for `toString`, this is already a string. Also, can we avoid adding this arg at all instead of using "null"?
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