title: How to use dj-database-url while connecting with postgresql in heroku using python
body: <p>I'm here because I'm really really new with heroku-python-django-postgresql group. I have googled for a usage for dj-database-url and I don't understand why i have to use it when developing a python application that needs to connect with postgresql. I have added postgresql (dev version) as add-on to my application, but I don't know how to tell to the app that I want it to use my db.</p>
  
  <p>so, the short question is, How do I indicate to dj-database-url that I want to use my database?</p>
  
  <p>Thanks for your time and answers, I'll appreciate your help because this is very very urgent!</p>