title: Using the lowercase function with CSV rows
body: <p>I'm trying to print all data from a csv in lowercase, but I'm not having any luck.</p>
  
  <p>Here's what I have so far:</p>
  
  <pre><code>import csv
  books = csv.reader(open("books.csv","rb"))
  
  for row in books:
      print row
  </code></pre>
  
  <p>This prints all the content of the csv, but when I add the <code>.lower()</code> function, I get errors. </p>
  
  <p>What am I doing wrong?</p>