title: Python: How do I convert an array of strings to an array of numbers?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/2424412/what-is-the-easiest-way-to-convert-list-with-str-into-list-with-int">What is the easiest way to convert list with str into list with int?</a>  </p>
  </blockquote>
  
  
  
  <p>current array: <code>['1','-1','1']</code>
  desired array: <code>[1,-1,1]</code></p>