title: Count occurrences in a specific column in a .csv, without extra characters
body: <blockquote>
  <pre><code>StartDate EndDate Days    Strategy
  1/4/11    1/20/11 11   Multi #1
  1/21/11   1/27/11 4    Multi #18
  1/28/11   1/31/11 1    Multi #8
  1/31/11   2/3/11  3    Multi #20
  2/7/11    2/9/11  2    Multi #10
  2/9/11    2/23/11 9    Multi #5
  2/23/11   3/4/11  7    Multi #16
  3/11/11   3/14/11 1    Multi #20
  3/15/11   3/22/11 5    Multi #20
  </code></pre>
  </blockquote>
  
  <pre><code>import csv
  from collections import Counter
  
  with open('/input.csv') as f:
      next(f)  # skip header
      occurrence = Counter(tuple(row[3:4]) for row in csv.reader(f))
  print(occurrence)
  
  with open('/output.csv', 'w') as f:
      writer = csv.writer(f)
      writer.writerow(['Strategy', 'Counts'])
      for (src), cnt in occurrence.items():
          writer.writerow([src, cnt])
  </code></pre>
  
  <p>On top is a sample of a larger comma separated CSV and my code so far in Python 3. I'd like to read the file and count the number of times each Strategy occurs. The code above outputs what I want, but with extra characters. I'd like the rows to look like:</p>
  
  <pre><code>&gt;Multi #1,1 
  &gt;Multi #18,1
  &gt;Multi #8,1
  &gt;Multi #20,3
  </code></pre>
  
  <p>Instead, rows look like:</p>
  
  <pre><code>&gt; "(' Multi #18',)",3
  </code></pre>
  
  <p>Do I need to use another way of counting the column to get the desired result? Is there a better way to select the Strategy column for counting? </p>