title: Using raw_input to define what variable list to search
body: <p>How can i use the raw_input value stored in rowChoice be used in count? i.e. right now i define A.count. How would i wtite the correct equivanlent of rowChoice.count, where the user defines which of A,B,C,D to seach through. </p>
  
  <pre><code>A = ['available', 'unavailable','available','available','available']
  B = ['unavailable', 'unavailable','available','available','available']
  C = ['available', 'unavailable','unavailable','available','available']
  D = ['available', 'unavailable','available','unavailable','unavailable']
  
  rowChoice = raw_input('What row would you like to sit in? &gt;&gt; ')
  
  count = A.count('available')
  print'there are %r seats available in this row' %(count)
  </code></pre>