title: Converting ISO 8601 date format with timezone in python
body: <p>I am attempting to convert the following date (2012-12-25T08:52:00-05:00) to a datetime object in python. However, I cannot figure out what the <strong>-05:00</strong> part of the date is referencing. I am simply trying to perform the following:</p>
  
  <pre><code>datetime.datetime.strptime('2012-12-25T08:52:00-05:00','%Y-%m-%dT%H:%M:%S')
  </code></pre>
  
  <p>But this comes up with an expected '<strong>ValueError: unconverted data remains</strong>'. I'm just trying to figure out what the last part of the date is used for so that I can convert that string to a proper datetime object in python.</p>
  
  <p>Happy Holidays!</p>