gistfile1.py

class rc_factory(object):
    """
    Status codes.
    """
    CODES = dict(ALL_OK = ('OK', 200),
                 CREATED = ('Created', 201),
                 DELETED = ('', 204), # 204 says "Don't send a body!"
                 BAD_REQUEST = ('Bad Request', 400),
                 FORBIDDEN = ('Forbidden', 401),
                 NOT_FOUND = ('Not Found', 404),
                 DUPLICATE_ENTRY = ('Conflict/Duplicate', 409),
                 NOT_HERE = ('Gone', 410),
                 INTERNAL_ERROR = ('Internal Error', 500),
                 NOT_IMPLEMENTED = ('Not Implemented', 501),
                 THROTTLED = ('Throttled', 503))

    def __getattr__(self, attr):
        """
        Returns a fresh `HttpResponse` when getting 
        an "attribute". This is backwards compatible
        with 0.2, which is important.
        """
        try:
            (r, c) = self.CODES.get(attr)
        except TypeError:
            raise AttributeError(attr)

        class HttpResponseWrapper(HttpResponse):
            """
            Wrap HttpResponse and make sure that the internal _is_string 
            flag is updated when the _set_content method (via the content 
            property) is called
            """
            def _set_content(self, content):
                """
                Set the _container and _is_string properties based on the 
                type of the value parameter. This logic is in the construtor
                for HttpResponse, but doesn't get repeated when setting 
                HttpResponse.content although this bug report (feature request)
                suggests that it should: http://code.djangoproject.com/ticket/9403 
                """
                if not isinstance(content, basestring) and hasattr(content, '__iter__'):
                    self._container = content
                    self._is_string = False
                else:
                    self._container = [content]
                    self._is_string = True

            content = property(HttpResponse._get_content, _set_content)            

        return HttpResponseWrapper(r, content_type='text/plain', status=c)
    
rc = rc_factory()