Github user huaxingao commented on a diff in the pull request: https://github.com/apache/spark/pull/22295#discussion_r215022059 --- 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()) + True + """ + return self._jsparkSession.getActiveSession() --- End diff -- @HyukjinKwon Sorry for the late reply. Yes, this returns a JVM instance. In the scala code, ```SparkSession.getActiveSession``` returns an ```Option[SparkSession]``` I am not sure how to do a python equivalent of Scala's ```Option```. In the following code, is there a way to wrap the python ```session``` in else path to something equivalent of Scala's ```Option```? If not, can I just return the python ```session```? ``` if self._jsparkSession.getActiveSession() is None: return None else: return self.__class__(self._sc, self._jsparkSession.getActiveSession().get()) ```
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