Github user holdenk commented on a diff in the pull request:
https://github.com/apache/spark/pull/22295#discussion_r214410416
--- Diff: python/pyspark/sql/session.py ---
@@ -252,6 +252,16 @@ def newSession(self):
"""
return self.__class__(self._sc, self._jsparkSession.newSession())
+ @since(2.4)
+ def getActiveSession(self):
+ """
+ Returns the active SparkSession for the current thread, returned
by the builder.
+ >>> s = spark.getActiveSession()
+ >>> spark._jsparkSession.getDefaultSession().get().equals(s.get())
--- End diff --
So normally we try and have doc tests like these be examples of how the
user should use this. So I would consider getting the active session and then
doing something a normal user would with it (like paralleling a collection).
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