[SPARK-3417] -Use new-style classes in PySpark

python/pyspark/mllib/random.py

@@ -28,7 +28,7 @@
 __all__ = ['RandomRDDs', ]
 
 
-class RandomRDDs:
+class RandomRDDs(object):
     """
     Generator methods for creating RDDs comprised of i.i.d samples from
     some distribution.

python/pyspark/mllib/util.py

@@ -25,7 +25,7 @@
 from pyspark.serializers import NoOpSerializer
 
 
-class MLUtils:
+class MLUtils(object):
 
     """
     Helper methods to load, save and pre-process data used in MLlib.

python/pyspark/sql.py

@@ -898,7 +898,7 @@ def __reduce__(self):
     return Row
 
 
-class SQLContext:
+class SQLContext(object):
 
     """Main entry point for SparkSQL functionality.
 

python/pyspark/storagelevel.py

@@ -18,7 +18,7 @@
 __all__ = ["StorageLevel"]
 
 
-class StorageLevel:
+class StorageLevel(object):
 
     """
     Flags for controlling the storage of an RDD. Each StorageLevel records whether to use memory,