title: Sum a csv column in python
body: <p>I'm trying to make a sum of a column in a csv file. The file looks like:</p>
  
  <pre><code>Date  Value
  2012-11-20  12
  2012-11-21  10
  2012-11-22  3
  </code></pre>
  
  <p>This can be in the range of hundreds of rows. I need to get the total of Value (in this case it would be 25) printed on to a terminal. I so far have some code but it's resulting in a much smaller figure than it should sum. When troubleshooting it, I did a print of the sum and realized that instead of summing 12 + 10 + 3, it actually breaks the numbers in each column and sums as 1 + 2 + 1 + 0 + 3, which obviously equals to a much smaller total. Here's my code, if someone could make a recommendation would be great!</p>
  
  <pre><code>with open("file.csv")) as fin:
    headerline = fin.next()
    total = 0
    for row in csv.reader(fin):
      print col # for troubleshooting
      for col in row[1]:
        total += int(col)
    print total
  </code></pre>