Deploying Django to AWS - WSGIPath refers to a file that does not exist

I've been struggling with getting Django and AWS to work together. I'm following the tutorial here:

http://ift.tt/1uyhHt6

I've been following all the tutorial steps, including using the "eb option" command to change the WSGIPath, but I keep getting the error:

"ERROR: Your WSGIPath refers to a file that does not exist."

As far as I can tell I've been doing everything exactly according to the tutorial.

The relevant part of my config file looks like this:

NumProcesses: '1'
NumThreads: '15'
StaticFiles: /static/=static/
WSGIPath: iotd/iotd/wsgi.py

What am I doing wrong?