sorted the import following Spark coding convention

Author: Ken Takagiwa

streaming/src/main/scala/org/apache/spark/streaming/api/python/PythonDStream.scala

@@ -19,42 +19,28 @@ package org.apache.spark.streaming.api.python
 
 import java.util.{List => JList, ArrayList => JArrayList, Map => JMap, Collections}
 
-import org.apache.spark.api.java.{JavaSparkContext, JavaPairRDD, JavaRDD}
-import org.apache.spark.broadcast.Broadcast
+import scala.reflect.ClassTag
+
 import org.apache.spark._
-import org.apache.spark.util.Utils
-import java.io._
-import scala.Some
-import org.apache.spark.streaming.Duration
-import scala.util.control.Breaks._
-import org.apache.spark.broadcast.Broadcast
-import scala.Some
-import org.apache.spark.streaming.Duration
 import org.apache.spark.rdd.RDD
-import org.apache.spark.api.python.PythonRDD
-
-
+import org.apache.spark.api.python._
+import org.apache.spark.broadcast.Broadcast
 import org.apache.spark.streaming.{Duration, Time}
 import org.apache.spark.streaming.dstream._
 import org.apache.spark.streaming.api.java._
-import org.apache.spark.rdd.RDD
-import org.apache.spark.api.python._
-import org.apache.spark.api.python.PairwiseRDD
-
 
-import scala.reflect.ClassTag
 
 
 class PythonDStream[T: ClassTag](
-                                  parent: DStream[T],
-                                  command: Array[Byte],
-                                  envVars: JMap[String, String],
-                                  pythonIncludes: JList[String],
-                                  preservePartitoning: Boolean,
-                                  pythonExec: String,
-                                  broadcastVars: JList[Broadcast[Array[Byte]]],
-                                  accumulator: Accumulator[JList[Array[Byte]]]
-                                  ) extends DStream[Array[Byte]](parent.ssc) {
+    parent: DStream[T],
+    command: Array[Byte],
+    envVars: JMap[String, String],
+    pythonIncludes: JList[String],
+    preservePartitoning: Boolean,
+    pythonExec: String,
+    broadcastVars: JList[Broadcast[Array[Byte]]],
+    accumulator: Accumulator[JList[Array[Byte]]])
+  extends DStream[Array[Byte]](parent.ssc) {
 
   override def dependencies = List(parent)
 
@@ -146,8 +132,3 @@ DStream[(Long, Array[Byte])](prev.ssc){
   }
   val asJavaPairDStream : JavaPairDStream[Long, Array[Byte]]  = JavaPairDStream.fromJavaDStream(this)
 }
-
-
-
-
-