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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

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