title: Using a function to make a list
body: <p>for some time now I have been creating these list with similar labels such as "March_01_2017","March_02_2017" and so on, these list are basically dated sequences.</p>
  
  <p>Instead of having to repeatedly type a list display like:</p>
  
  <pre><code>&gt;&gt;&gt;Date=[] 
  </code></pre>
  
  <p>I would rather pass a parameter to a function and have it do the job for me. my problem right now is that I don't know how to get a function to do this task, or know what I need to read to learn how to do this.</p>