Github user felixcheung commented on a diff in the pull request: https://github.com/apache/spark/pull/22295#discussion_r214530177 --- 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 -- ..and probably shouldn't access `_jsparkSession`
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