title: Find Monday's date with Python
body: <p>How do I find the previous Monday's date, based off of the current date using Python? I thought maybe I could use: <code>datetime.weekday()</code> to do it, but I am getting stuck.</p>
  
  <p>I basically want to find today's date and Mondays date to construct a date range query in django using: <code>created__range=(start_date, end_date)</code>.  </p>