title: Remove duplicate rows from CSV
body: <p>I have a CSV file that looks like this</p>
  
  <pre><code>red,75,right
  red,344,right
  green,3,center
  yellow,3222,right
  blue,9,center
  black,123,left
  white,68,right
  green,47,left
  purple,48,left
  purple,988,right
  pink,2677,left
  white,34,right
  </code></pre>
  
  <p>I am using Python and am trying to remove rows that have duplicate in cell 1.  I know I can achieve this using something like pandas but I am trying to do it using standard python CSV library.</p>
  
  <p>Expected Result is...</p>
  
  <pre><code>red,75,right
  green,3,center
  yellow,3222,right
  blue,9,center
  black,123,left
  white,68,right
  purple,988,right
  pink,2677,left
  </code></pre>
  
  <p>Anyone have an example?</p>