Github user justinuang commented on a diff in the pull request:
https://github.com/apache/spark/pull/8318#discussion_r37563567
--- Diff: python/pyspark/__init__.py ---
@@ -36,6 +36,31 @@
Finer-grained cache persistence levels.
"""
+import os
+import sys
+
+import xml.etree.ElementTree as ET
+
+if (os.environ.get("SPARK_HOME", "not found") == "not found"):
--- End diff --
I agree with @alope107. In addition, if people are using spark-submit, then
this isn't necessary right? spark-submit sets up SPARK_HOME automatically.
Are people launching python apps frequently without using spark-submit?
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