Github user sryza commented on a diff in the pull request: https://github.com/apache/spark/pull/3976#discussion_r23899908 --- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala --- @@ -267,10 +292,22 @@ 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) { + val mainPyFile = new Path(args.primaryResource).getName + childArgs += ("--primary-py-file", mainPyFile) + val pyFilesNames: String = if (args.pyFiles != null) { --- End diff -- Why not do if (args.pyFiles != null) { val pyFilesNames = args.pyFiles.split... childArgs += ("--py-files", pyFilesNames) } instead of setting it to "null"?
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