Does poster.encode module supported in python appengine?
You'd need to deploy the module with your code by including it in your application's directory when deploying, but it does appear to be a pure python module and looking through the source I see no reason why it wouldn't work just fine in App Engine.
The only modules that won't work are those that use C extensions or make use of features like threads, sockets, etc. that are disabled in the App Engine runtime.  poster.streaminghttp, for example, almost certainly won't work, as it uses sockets.
Does poster.encode module supported in python appengine ??
if No , whats is the possible alternatives ?