title: Subtract time from datetime.time object
body: <pre><code>from datetime import datetime, timedelta
  current_time = datetime.now().time()
  new_time = current_time - timedelta(seconds=10)
  &gt;&gt; TypeError: unsupported operand type(s) for -: 'datetime.time' and 'datetime.timedelta'
  </code></pre>
  
  <p>How can I substract time from a datetime.time object? This code seems working only with datetime.datetime objects.</p>