title: Python: Summing up a float
body: <p>If I have a list of strings stored in a variable called b_split[1]. Basically the 1st position in b_split contains these latitude values as a string.</p>
  
  <blockquote>
    <p>['10.2']<br>
    ['10.4']<br>
    ['10.5']</p>
  </blockquote>
  
  <p>I want to be able to sum them up.. </p>
  
  <pre><code>for i in text_file:
      latitude = float(b_split[1])
  print sum(latitude)
  </code></pre>
  
  <p>It gives me an error that the 'float' object is not iterable</p>