python - 属性错误 : 'RDD' object has no attribute 'show'

Question

from pyspark import SparkContext, SparkConf, sql
from pyspark.sql import Row
sc = SparkContext.getOrCreate()
sqlContext = sql.SQLContext(sc)
df = sc.parallelize([ \
                 Row(nama='Roni', umur=27, tingi=168), \
                 Row(nama='Roni', umur=6, tingi=168),
                 Row(nama='Roni', umur=89, tingi=168),])

df.show()

error: Traceback (most recent call last):

File "ipython-input-24-bfb18ebba99e", line 8, in df.show()

AttributeError: 'RDD' object has no attribute 'show'

Answer 1

错误很明显，因为 df 是一个 rdd。您应该在以下代码中使用 toDF 将其更改为数据框:

df = df.toDF()
df.show()