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

If you want a specific column :

import pyspark.sql.functions as F     

df.agg(F.sum("my_column")).collect()[0][0]