Finding sum of values in field

Discussion created by dugtoni on Oct 11, 2011
Latest reply on Apr 13, 2016 by GISGURU_001
I have a cities feature class with a field for the Population in the attribute table. I want to find the sum of all the values in the Population field which will give me the total population of all the cities. I think I might have to use the arcpy.CalculateField_management function but I am confused on the syntax I should be using, or maybe there is a different way I should be writing the script. Any help would be much appreciated!