PySpark - Sum a column in dataframe and return results as int

Question

I have a pyspark dataframe with a column of numbers. I need to sum that column and then have the result return as an int in a python variable.

df = spark.cr         


        

Answer 1

I think the simplest way:

df.groupBy().sum().collect()

will return a list. In your example:

In [9]: df.groupBy().sum().collect()[0][0]
Out[9]: 130