title: How come I can't delete a entity in Datastore?
body: <p>Here is my code:</p>
  
  <pre><code>from google.appengine.ext import db
  class m(db.Model):
  s = db.StringProperty()
  k = m(s='To be deleted')
  k.put()
  print k.key()
  db.delete(k.key())
  print k.s
  </code></pre>
  
  <p>and this is the output i am getting:</p>
  
  <pre><code>aghkZXZ-YmxvZ3IOCxIBbRiAgICAgPC7Cgw
  To be deleted
  </code></pre>