Steps to configure :

mkdir "app_name" ;cd "app_name"
gedit "app_name".py
gedit app.yaml :


application:"name_of_app_gsa"
version: 1
runtime: python
api_version: 1
handlers:
- url: /.*
script: helloworld.py


Configure : python dev_appserver.py "app_name"


Uploading : sudo appcfg.py --email=hemanth[dot]hm[at]gmail.com update "app_name"/