title: Python- insert a character into a string
body: <p>I think this should be relatively simple, but I can't figure it out. I have a string that represents coordinates, <code>+27.5916+086.5640</code> and I need to put a comma in between the longitude and latitude so I get <code>+27.5916,+086.5640</code>.</p>
  
  <p>I'm looking through the API but I can't seem to find something for this.</p>
  
  <p>Oh and I have to use Python 2.7.3 since the program I writing for doesn't support Python 3.X.</p>