Sorry, I can no longer reproduce the error. After upgrading Python3.4.2 to Python 3.4.4, the error disappears.
Spark release: spark-1.6.0-bin-hadoop2.6 code snippet: ``` lines = sc.parallelize([5,6,2,8,5,2,4,9,2,1,7,3,4,1,5,8,7,6]) pairs = lines.map(lambda x: (x, 1)) counts = pairs.reduceByKey(lambda a, b: a + b) counts.collect() ``` On Fri, Feb 12, 2016 at 4:26 PM, Ted Yu <yuzhih...@gmail.com> wrote: > Can you give a bit more information ? > > release of Spark you use > full error trace > your code snippet > > Thanks > > On Fri, Feb 12, 2016 at 7:22 AM, Sisyphuss <zhengwend...@gmail.com> wrote: > >> When trying the `reduceByKey` transformation on Python3.4, I got the >> following error: >> >> ImportError: No module named 'UserString' >> >> >> >> >> -- >> View this message in context: >> http://apache-spark-user-list.1001560.n3.nabble.com/Python3-does-not-have-Module-UserString-tp26212.html >> Sent from the Apache Spark User List mailing list archive at Nabble.com. >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: user-unsubscr...@spark.apache.org >> For additional commands, e-mail: user-h...@spark.apache.org >> >> >
