Add all values in a CSV column in Python

Question

These seems like something very simple, but search as I might I just can\'t get past it.

I have a CSV file like this:

Day,Event,Value
1,\"Rent\",500
         


        

Answer 1

Considering the first line of csv file is 'Day,Event,Value', you can use a generator expression with sum()

>>> cr = csv.reader(open("file.csv","rb"))
>>> cr.next()
>>> print sum(int(x[2]) for x in cr)
1500