pyspark.RDD.first#

RDD.first()[source]#

Return the first element in this RDD.

New in version 0.7.0.

Returns

T

the first element

See also

RDD.take()

pyspark.sql.DataFrame.first()

pyspark.sql.DataFrame.head()

Examples

>>>sc.parallelize([2,3,4]).first()2>>>sc.parallelize([]).first()Traceback (most recent call last):...ValueError:RDD is empty