Number of cells, using CSV module

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I'm using the csv module to get information from a csv file. I have items listed in Column A. I want to know how many items are listed in Column A. 

import csv
with open('test.csv', 'r') as f:
    reader = csv.reader(f)
    for column in reader:
        column = (column[0])
        print(column)     

We are given

>a
>b
>c
>d
>e
>f

How would I go about getting the amount of numbers that are printed? If I try printing len(column), I get 
>1
>1
>1
>1
>1
>1