title: Extract a column based on its contents CSV python
body: <p>I have a csv file like below</p>
  
  <pre><code>h1,h2,h3
  1 year,homo sapiens,fibrous tissue
  3 minutes,homo sapiens,fibrous tissue
  2 hours,homo sapiens,epithelial tissue
  </code></pre>
  
  <p>I'm trying to get just that column which has the string I provide in it. For example, if I say year, the entire column needs to be appended into a list like [1 year,3 minutes,2 hours]. I'm totally lost on how to proceed. I really appreciate any help.</p>
  
  <p>EDIT: The issue with this is, the data can be in any column. </p>