title: How to print column in python array?
body: <p>I have an array of 3 numbers per row, 4 columns deep.
  I am struggling to figure out how I can write the code to print all numbers from a specified column rather than from a row.</p>
  
  <p>I have searched for tutorials that explain this easily and just cannot find any that have helped.
  Can anyone point me in the right direction?</p>