How do I implement Post-redirect-get on Google App Engine with Python?

How do I implement Post-redirect-get on Google App Engine with Python?

References

Reference NO 1

http://stackoverflow.com/questions/15193988/how-do-i-implement-post-redirect-get-on-google-app-engine-with-python

Reference NO 2

https://developers.google.com/appengine/docs/python/gettingstartedpython27/

Reference NO 3

https://developers.google.com/appengine/docs/python/memcache/?csw=1

Reference NO 4

http://sites.google.com/site/gdevelopercodelabs/app-engine/python-codelab

Reference NO 5

http://blog.abahgat.com/2013/01/07/user-authentication-with-webapp2-on-google-app-engine/

Reference NO 6

http://alexids.googlecode.com/files/Developing%2Bwith%2BGoogle%2BApp%2BEngine.pdf

Reference NO 7

http://ikaisays.com/2011/05/26/setting-up-an-oauth-provider-on-google-app-engine/

Reference NO 8

http://en.wikipedia.org/wiki/Google_App_Engine