HyukjinKwon commented on a change in pull request #28256:
URL: https://github.com/apache/spark/pull/28256#discussion_r449464441



##########
File path: bin/find-spark-home
##########
@@ -34,8 +34,5 @@ elif [ ! -f "$FIND_SPARK_HOME_PYTHON_SCRIPT" ]; then
 else
   # We are pip installed, use the Python script to resolve a reasonable 
SPARK_HOME
   # Default to standard python interpreter unless told otherwise
-  if [[ -z "$PYSPARK_DRIVER_PYTHON" ]]; then
-     PYSPARK_DRIVER_PYTHON="${PYSPARK_PYTHON:-"python"}"
-  fi
-  export SPARK_HOME=$($PYSPARK_DRIVER_PYTHON "$FIND_SPARK_HOME_PYTHON_SCRIPT")
+  export SPARK_HOME=$(${PYSPARK_PYTHON:-"python"} 
"$FIND_SPARK_HOME_PYTHON_SCRIPT")

Review comment:
       @mzhang-code, can we just add a bandaid fix like: if 
`PYSPARK_DRIVER_PYTHON` ends with `jupyter` or `ipython`, uses `PYSPARK_PYTHON` 
or `python` for now with some comments about why we're using `PYSPARK_PYTHON` 
instead of `PYSPARK_DRIVER_PYTHON`?




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