Does Django request.REQUEST.get() contain BOTH GET and POST parameters?
Yes, the doc says:

HttpRequest.REQUEST For convenience, a dictionary-like object that
  searches POST first, then GET. Inspired by PHP’s $_REQUEST.
For example, if GET = {"name": "john"} and POST = {"age": '34'},
  REQUEST["name"] would be "john", and REQUEST["age"] would be "34".
It’s strongly suggested that you use GET and POST instead of REQUEST,
  because the former are more explicit.
Are the parameters in request.POST and request.GET BOTH in request.REQUEST ? Or i have to check for each of them ?
I can't find a clear info in the documentation for both REQUEST/QueryDict.
NB: Django 1.4 Final