I followed the instructions and copied the wsgi config file, but at http://webapp-158684.pythonanywhere.com/ there is still a default PythonAnywhere site.
My domain registrar is ASmallOrange and trying to point to "webapp-158684.pythonanywhere.com" gives me an 'invalid nameserver host []' error. This might be my fault or theirs, so I have a support ticket open at ASO too.