title: How to quickly insert huge datas into datastore while running on GAE development server?
body: <h2>Background:</h2>
  <p>While coding on GAE's local Development Web Server, user need to upload Mega-level datas and store (not straight forward store, but need many format check and translate) them into Datastore using <strong>deferred library</strong>.</p>
  <p>Usually about 50,000 entities, CSV File size is about 5MB, and I tried to insert 200 entities each time using deferred library.</p>
  <p>And I used python.</p>
  <h2>Problem</h2>
  <p>The development server is really slow that I need to wait <strong>one/more hours</strong> to finish this upload process.</p>
  <p>I used --use_sqlite option to speed up the development web server.</p>
  <h2>Question:</h2>
  <p>Is there any other method or tuning that can make it faster?</p>