python get output

>out = subprocess.Popen(['wc', '-l', 'my_text_file.txt'], 
           stdout=subprocess.PIPE, 
           stderr=subprocess.STDOUT)

from pyspark import SparkContext
sc = SparkContext.getOrCreate()
data1 = sc.parallelize([[ 'red blue hi you red' ],
            [ 'ball green ball go four ball'],
            [ 'nice red start nice' ],
            [ 'ball no kill tree go go' ]])
data2 = data1.flatMap(lambda x: [
  (x_i,1) for xx in x for x_i in xx.split(' ')])
data3 = data2.reduceByKey(lambda x, y: x + y)
print(data3.collect())