如何从RDD输出中删除括号？

Question

When I print an RDD I get the following result:

[(46, u'15910'), (43, u'15287'), (43, u'15237'), (42, u'15923'), (41, u'15298')]

I want to save the RDD output to a csv file without brackets or the 'u' sign, similar to below:

46, 15910
43, 15287
43, 15237
42, 15923
41, 15298

Answer 1

Either write csv:

>>> rdd.toDF().write.csv("path")

or format:

>>> rdd.map(lambda (k, v): "{0},{1}".format(k, v)).saveAsTextFile("path")