title: How can I run my Flask app step by step to debug it?
body: <p>I want to run IPython interactively while running my Flask app.  I tried <code>ipython -i app.py</code> but I don't get a prompt until after the app exits.  I want to do this so I can debug each step of the program.  How can I run my app and be able to examine it?</p>