A barebones Django app, which can easily be deployed to Heroku.
This application supports the Getting Started with Python on Heroku article - check it out for instructions on how to deploy this app to Heroku and also run it locally.
Alternatively, you can deploy it using this Heroku Button:
For more information about using Python on Heroku, see these Dev Center articles:
The /sleep/ endpoint will sleep for 1 second before rendering a response.
You can configuring the delay in millseconds by passing the ms querystring param: /sleep/?ms=3000