title: how to reload local datastore in Google App Engine
body: <p>This used to work until about 3 months ago.</p>
  
  <pre><code>dev_appserver.py --storage_path=/home/stephen/webprog/trunk2/ trunk2/app.yaml
  </code></pre>
  
  <p>now it starts the server but datastore is empty. I need the DataStore as it has models and user logins. What I do now is to unzip an old trunk from 3 months ago and start the server, then change the code (not touching the DS models), then log in, test, logout and stop with C-c. if I restrat the server the DataStore will not load. How can I make it load the DataStore so that I do not need to revert to my old working trunk? I am using Google App Engine using python.
  Thanks</p>