import org.apache.spark.{SparkConf, SparkContext}
    import org.apache.spark.SparkContext._
    println("Creating Context")
    val conf = new SparkConf().setMaster("local").setAppName("Test")
    val sc = new SparkContext(conf)
    val lines = sc.textFile("/home/lbali/example.txt")
    val pandas = lines filter(line => line.contains("pandas"))
    println("+++++ number of lines: " + lines.count()) // this works ok.
    println("+++++ number of lines with pandas: " + pandas.count()) // This does not work
    sc.stop()