title: Turn an array of date strings into dates
body: <p>I have an array of date strings <code>['1/1/2014', '1/2/2014', '1/3/2014', ...]</code>, how do I turn that into an array of Date objects? </p>
  
  <p>This will cast 1 cell:</p>
  
  <pre><code>time.strptime(dates[1], '%m/%d/%Y')
  </code></pre>
  
  <p>But I haven't seen a way to pass in an entire array. I can loop over my array:</p>
  
  <pre><code>date_objects = []
  for date in dates:
      date_objects.append(time.strptime(date, '%m/%d/%Y'))
  end
  </code></pre>
  
  <p>Gives an error that <code>ValueError: time data 'Date' does not match format '%m/%d/%Y'</code></p>