title: How to assign current date to a date field in odoo v8?
body: <p>I wanted to assign the current date to a date field 'start_date' in the following code:</p>
  
  <pre><code>calendar_obj.create(cr,uid,
               {'name' : rec_res.act_ion,
                'user_id' : rec_res.asgnd_to.id,
                'start_date' : lambda *a:datetime.today().strftime('%m-%d-%Y'),
                'stop_date' : rec_res.due_date,
                'allday' : True,
                'partner_ids' : [(6,0, [rec_res.asgnd_to.partner_id.id])]
               },
  context=context)
  </code></pre>
  
  <p>How to set or assign the current date value to the <em>start_date</em> field ?</p>