Error using reducebykey: int object is unsubscriptable

Question

I\'m getting an error \"int object is unsubscriptable\" while executing the following script :

element.reduceByKey( lambda x , y : x[1]+y[1]         


        

Answer 1

Another approach would be to use Dataframe

rdd = sc.parallelize([('A', ('toto', 10)),('A', ('titi', 30)),('5', ('tata', 10)),('A', ('toto', 10))])
rdd.map(lambda (a,(b,c)): (a,b,c)).toDF(['a','b','c']).groupBy('a').agg(sum("c")).rdd.map(lambda (a,c): (a,c)).collect()

>>>[(u'5', 10), (u'A', 50)]