title: Python TypeError: can only concatenate tuple (not "int") to tuple
body: <p>I am providing two values (mon_voltage and core_voltage) through command line, and I need to search a 'start point' from a two dimensional array from where my iteration or loop will start.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>myArray =  [[1.02,1.13],[1.02,1.16],[1.02,1.18],[1.02,1.21],[1.02,1.265]]
  
  start_point = myArray.index([mon_voltage, core_voltage])
  print "Start point is", start_point
  
  for idx in enumerate(myArray):
  
       mon_voltage = myArray[idx + start_point][0]
       core_voltage = myArray[idx + start_point][1]
  </code></pre>
  
  <p>I am getting the following error:</p>
  
  <pre><code>  TypeError: can only concatenate tuple (not "int") to tuple
  </code></pre>
  
  <p>I am unable to figure out why start_point, which is an index, is a tuple. Please help.</p>