from django.http import HttpResponse as response
from django.http import HttpResponseNotAllowed

class ViewClass:
    def __call__(self, request, *args, **kwargs):
        self.request = request
        methods = ['POST', 'GET']
        self.methods = [method for method in dir(self)\
                 if callable(getattr(self, method)) and method in methods]

        if request.method in self.methods:
            view = getattr(self, request.method)
            return view(*args, **kwargs)
        else:
            return HttpResponseNotAllowed(self.methods)

class IndexView(ViewClass):
    def GET(self):
        return response("all ok %s" % self.request.method)

    def POST(self):
        return response("all ok %s" % self.request.method) 

index = IndexView()