Do you need to update the app_id in your app.yaml?
It doesn't look like the application hello-udacity exists per the error, "This
application does not exist (app_id=u'hello-udacity')." Are you sure this is
the correct app_id? Do you see it in your applications at
https://appengine.google.com?
Bes
2015-03-02 23:54:06 Running command: "['C:\\Python27\\pythonw.exe', '-u',
'C:\\Program Files (x86)\\Google\\google_appengine\\appcfg.py',
'--no_cookies', u'--email=njan@gmail.com', '--passin', 'update',
u'C:\\Python27\\helloworld\\hello-udacity']"
11:54 PM Application: hello-udacity; version