Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/9122#discussion_r42277272
--- Diff: python/pyspark/context.py ---
@@ -280,6 +280,18 @@ def __exit__(self, type, value, trace):
"""
self.stop()
+ @classmethod
+ def getOrCreate(cls, conf=None):
+ """
+ Get or instantiate a SparkContext and register it as a singleton
object.
+
+ :param conf: SparkConf (optional)
+ """
+ if SparkContext._active_spark_context is None:
--- End diff --
don't you need to hold `SparkContext._lock` when you check for this?
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