Github user pgandhi999 commented on a diff in the pull request:
https://github.com/apache/spark/pull/21468#discussion_r198935817
--- Diff:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala
---
@@ -811,10 +811,18 @@ private[spark] class Client(
// Finally, update the Spark config to propagate PYTHONPATH to the AM
and executors.
if (pythonPath.nonEmpty) {
- val pythonPathStr = (sys.env.get("PYTHONPATH") ++ pythonPath)
+ val pythonPathStr = (sys.env.get("PYTHONPATH") ++=: pythonPath)
--- End diff --
Makes sense, have changed it to ++
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