diff --git a/python/pyspark/rdd.py b/python/pyspark/rdd.py
index ae09dbff02..ca2dc119a4 100644
--- a/python/pyspark/rdd.py
+++ b/python/pyspark/rdd.py
@@ -180,6 +180,10 @@ class RDD(object):
     def map(self, f, preservesPartitioning=False):
         """
         Return a new RDD by applying a function to each element of this RDD.
+        
+        >>> rdd = sc.parallelize(["b", "a", "c"])
+        >>> sorted(rdd.map(lambda x: (x, 1)).collect())
+        [('a', 1), ('b', 1), ('c', 1)]
         """
         def func(split, iterator): return imap(f, iterator)
         return PipelinedRDD(self, func, preservesPartitioning)